diff --git a/demo-album/lib/cos-wx-sdk-v5.js b/demo-album/lib/cos-wx-sdk-v5.js
index f6be7ef..410667b 100644
--- a/demo-album/lib/cos-wx-sdk-v5.js
+++ b/demo-album/lib/cos-wx-sdk-v5.js
@@ -254,7 +254,7 @@ var getFileMd5 = function (body, callback) {
 
 function clone(obj) {
     return map(obj, function (v) {
-        return typeof v === 'object' ? clone(v) : v;
+        return typeof v === 'object' && v !== null ? clone(v) : v;
     });
 }
 
@@ -629,6 +629,13 @@ var canFileSlice = (function () {
     };
 })();
 
+var isCIHost = function(url) {
+    if (url && url.split('?')[0].match(/(.ci.|ci.|.ci)/g)) {
+        return true;
+    }
+    return false;
+}
+
 var util = {
     noop: noop,
     formatParams: formatParams,
@@ -659,6 +666,7 @@ var util = {
     getAuth: getAuth,
     compareVersion: compareVersion,
     canFileSlice: canFileSlice,
+    isCIHost: isCIHost,
 };
 
 module.exports = util;
@@ -2339,7 +2347,7 @@ base.init(COS, task);
 advance.init(COS, task);
 
 COS.getAuthorization = util.getAuth;
-COS.version = '1.0.13';
+COS.version = '1.1.0';
 
 module.exports = COS;
 
@@ -8098,6 +8106,53 @@ function multipartAbort(params, callback) {
     });
 }
 
+/**
+ * 追加上传
+ * @param  {Object}  params                                         参数对象，必须
+ *     @param  {String}  params.Bucket                              Bucket名称，必须
+ *     @param  {String}  params.Region                              地域名称，必须
+ *     @param  {String}  params.Key                                 object名称，必须
+ *     @param  {String}  params.Body                上传文件的内容，只支持字符串
+ *     @param  {Number}  params.Position                            追加操作的起始点，单位为字节，必须
+ *     @param  {String}  params.CacheControl                        RFC 2616 中定义的缓存策略，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentDisposition                  RFC 2616 中定义的文件名称，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentEncoding                     RFC 2616 中定义的编码格式，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentLength                       RFC 2616 中定义的 HTTP 请求内容长度（字节），必须
+ *     @param  {String}  params.ContentType                         RFC 2616 中定义的内容类型（MIME），将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.Expect                              当使用 Expect: 100-continue 时，在收到服务端确认后，才会发送请求内容，非必须
+ *     @param  {String}  params.Expires                             RFC 2616 中定义的过期时间，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ACL                                 允许用户自定义文件权限，有效值：private | public-read，非必须
+ *     @param  {String}  params.GrantRead                           赋予被授权者读取对象的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantReadAcp                        赋予被授权者读取对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantWriteAcp                       赋予被授权者写入对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantFullControl                    赋予被授权者操作对象的所有权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.StorageClass                        设置对象的存储级别，枚举值：STANDARD、STANDARD_IA、ARCHIVE，默认值：STANDARD，非必须
+ *     @param  {String}  params.x-cos-meta-*                        允许用户自定义的头部信息，将作为对象的元数据保存。大小限制2KB，非必须
+ *     @param  {String}  params.ContentSha1                         RFC 3174 中定义的 160-bit 内容 SHA-1 算法校验，非必须
+ *     @param  {String}  params.ServerSideEncryption                支持按照指定的加密算法进行服务端数据加密，格式 x-cos-server-side-encryption: "AES256"，非必须
+ * @param  {Function}  callback                                     回调函数，必须
+ *     @return  {Object}    err                                     请求失败的错误，如果请求成功，则为空。https://cloud.tencent.com/document/product/436/7730
+ *     @return  {Object}    data                                    返回的数据
+ */
+ function appendObject(params, callback) {
+    submitRequest.call(this, {
+        Action: 'name/cos:AppendObject',
+        method: 'POST',
+        Bucket: params.Bucket,
+        Region: params.Region,
+        action: 'append',
+        Key: params.Key,
+        body: params.Body,
+        qs: {
+          position: params.Position
+        },
+        headers: params.Headers,
+    }, function (err, data) {
+          if (err) return callback(err);
+          callback(null, data);
+    });
+}
+
 
 /**
  * cos 内置请求
@@ -8119,6 +8174,8 @@ function multipartAbort(params, callback) {
         headers: params.Headers,
         qs: params.Query,
         body: params.Body,
+        Url: params.Url,
+        rawBody: params.RawBody,
     }, function (err, data) {
         if (err) return callback(err);
         if (data && data.body) {
@@ -8616,7 +8673,7 @@ function _submitRequest(params, callback) {
     var region = params.Region;
     var object = params.Key;
     var method = params.method || 'GET';
-    var url = params.url;
+    var url = params.url || params.Url;
     var body = params.body;
     var json = params.json;
     var rawBody = params.rawBody;
@@ -8654,12 +8711,18 @@ function _submitRequest(params, callback) {
         json: json,
     };
 
+    // 兼容ci接口
+    var token = 'x-cos-security-token';
+    if (util.isCIHost(url)) {
+        token = 'x-ci-security-token';
+    }
+
     // 获取签名
     opt.headers.Authorization = params.AuthData.Authorization;
     params.AuthData.Token && (opt.headers['token'] = params.AuthData.Token);
     params.AuthData.ClientIP && (opt.headers['clientIP'] = params.AuthData.ClientIP);
     params.AuthData.ClientUA && (opt.headers['clientUA'] = params.AuthData.ClientUA);
-    params.AuthData.XCosSecurityToken && (opt.headers['x-cos-security-token'] = params.AuthData.XCosSecurityToken);
+    params.AuthData.XCosSecurityToken && (opt.headers[token] = params.AuthData.XCosSecurityToken);
 
     // 清理 undefined 和 null 字段
     opt.headers && (opt.headers = util.clearKey(opt.headers));
@@ -8811,6 +8874,7 @@ var API_MAP = {
     putObjectTagging: putObjectTagging,
     getObjectTagging: getObjectTagging,
     deleteObjectTagging: deleteObjectTagging,
+    appendObject: appendObject,
 
     // 分块上传相关方法
     uploadPartCopy: uploadPartCopy,
@@ -8840,22 +8904,47 @@ module.exports.init = function (COS, task) {
 /* 18 */
 /***/ (function(module, exports) {
 
+function camSafeUrlEncode(str) {
+  return encodeURIComponent(str)
+      .replace(/!/g, '%21')
+      .replace(/'/g, '%27')
+      .replace(/\(/g, '%28')
+      .replace(/\)/g, '%29')
+      .replace(/\*/g, '%2A');
+}
+
+function getObjectKeys(obj, forKey) {
+  var list = [];
+  for (var key in obj) {
+      if (obj.hasOwnProperty(key)) {
+          list.push(forKey ? camSafeUrlEncode(key).toLowerCase() : key);
+      }
+  }
+  return list.sort(function (a, b) {
+      a = a.toLowerCase();
+      b = b.toLowerCase();
+      return a === b ? 0 : (a > b ? 1 : -1);
+  });
+};
+
 var obj2str = function (obj) {
-    var i, key, val;
-    var list = [];
-    var keyList = Object.keys(obj);
-    for (i = 0; i < keyList.length; i++) {
-        key = keyList[i];
-        val = obj[key] || '';
-        list.push(key + '=' + encodeURIComponent(val));
-    }
-    return list.join('&');
+  var i, key, val;
+  var list = [];
+  var keyList = getObjectKeys(obj);
+  for (i = 0; i < keyList.length; i++) {
+      key = keyList[i];
+      val = (obj[key] === undefined || obj[key] === null) ? '' : ('' + obj[key]);
+      key = camSafeUrlEncode(key).toLowerCase();
+      val = camSafeUrlEncode(val) || '';
+      list.push(key + '=' + val)
+  }
+  return list.join('&');
 };
 
 var request = function (params, callback) {
     var filePath = params.filePath;
     var headers = params.headers || {};
-    var url = params.url;
+    var url = params.url || params.Url;
     var method = params.method;
     var onProgress = params.onProgress;
     var requestTask;
@@ -8894,6 +8983,7 @@ var request = function (params, callback) {
             'Expires',
             'x-cos-storage-class',
             'x-cos-security-token',
+            'x-ci-security-token',
         ];
         for (var i in params.headers) {
             if (params.headers.hasOwnProperty(i) && (i.indexOf('x-cos-meta-') > -1 || headerKeys.indexOf(i) > -1)) {
diff --git a/demo/demo-sdk.js b/demo/demo-sdk.js
index 51ba3b4..4155157 100644
--- a/demo/demo-sdk.js
+++ b/demo/demo-sdk.js
@@ -213,7 +213,7 @@ var toolsDao = {
             }
         });
     },
-    '分片上传': function() {
+    'sliceUploadFile 分片上传': function() {
         var sliceUploadFile = function (file) {
             var key = file.name;
             cos.sliceUploadFile({
@@ -341,7 +341,7 @@ var toolsDao = {
             Body: fileBuf,
         }, requestCallback);
     },
-    getObjectUrl: function() {
+    'getObjectUrl 获取对象访问url': function() {
         var url = cos.getObjectUrl({
             Bucket: config.Bucket, // Bucket 格式：test-1250000000
             Region: config.Region,
@@ -361,44 +361,44 @@ var bucketDao = {
         cos.getService(requestCallback);
     },
     // 简单 Bucket 操作
-    putBucket: function() {
+    'putBucket 创建存储桶': function() {
         cos.putBucket({
             Bucket: config.Bucket,
             Region: config.Region,
         }, requestCallback);
     },
-    headBucket: function() {
+    'headBucket 检索存储桶及其权限': function() {
         cos.headBucket({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    deleteBucket: function() {
+    'deleteBucket 删除存储桶': function() {
         cos.deleteBucket({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    getBucketACL: function() {
+    'getBucketACL 查询存储桶 ACL': function() {
         cos.getBucketAcl({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    putBucketACL: function() {
+    'putBucketACL 设置存储桶 ACL': function() {
         cos.putBucketAcl({
             Bucket: config.Bucket,
             Region: config.Region,
             ACL: 'public-read'
         }, requestCallback);
     },
-    getBucketCors: function() {
+    'getBucketCors 查询跨域配置': function() {
         cos.getBucketCors({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    putBucketCors: function() {
+    'putBucketCors 设置跨域配置': function() {
         cos.putBucketCors({
             Bucket: config.Bucket,
             Region: config.Region,
@@ -411,13 +411,13 @@ var bucketDao = {
             }]
         }, requestCallback);
     },
-    deleteBucketCors: function() {
+    'deleteBucketCors 删除跨域配置': function() {
         cos.deleteBucketCors({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    putBucketPolicy: function() {
+    'putBucketPolicy 设置存储桶策略': function() {
         var AppId = config.Bucket.substr(config.Bucket.lastIndexOf('-') + 1);
         cos.putBucketPolicy({
             Bucket: config.Bucket,
@@ -447,31 +447,31 @@ var bucketDao = {
             },
         }, requestCallback);
     },
-    getBucketPolicy: function() {
+    'getBucketPolicy 查询存储桶策略': function() {
         cos.getBucketPolicy({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    deleteBucketPolicy: function() {
+    'deleteBucketPolicy 删除存储桶策略': function() {
         cos.deleteBucketPolicy({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    getBucketLocation: function() {
+    'getBucketLocation 获取Bucket的地域信息': function() {
         cos.getBucketLocation({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    getBucketTagging: function() {
+    'getBucketTagging 获取Bucket标签': function() {
         cos.getBucketTagging({
             Bucket: config.Bucket,
             Region: config.Region
         }, requestCallback);
     },
-    putBucketTagging: function() {
+    'putBucketTagging 设置Bucket标签': function() {
         cos.putBucketTagging({
             Bucket: config.Bucket,
             Region: config.Region,
@@ -489,7 +489,7 @@ var bucketDao = {
             }
         }, requestCallback);
     },
-    deleteBucketTagging: function() {
+    'deleteBucketTagging 删除存储桶标签': function() {
         cos.deleteBucketTagging({
             Bucket: config.Bucket,
             Region: config.Region
@@ -581,7 +581,7 @@ var objectDao = {
             Body: fileBuf,
         }, requestCallback);
     },
-    getObject: function() {
+    'getObject 下载对象': function() {
         cos.getObject({
             Bucket: config.Bucket,
             Region: config.Region,
@@ -590,28 +590,28 @@ var objectDao = {
             // QueryString: `imageMogr2/thumbnail/200x/`,
         }, requestCallback);
     },
-    headObject: function() {
+    'headObject 检索对象': function() {
         cos.headObject({
             Bucket: config.Bucket,
             Region: config.Region,
             Key: '1.txt'
         }, requestCallback);
     },
-    deleteObject: function() {
+    'deleteObject 删除对象': function() {
         cos.deleteObject({
             Bucket: config.Bucket,
             Region: config.Region,
             Key: '1.txt'
         }, requestCallback);
     },
-    getObjectACL: function() {
+    'getObjectACL 获取对象ACL': function() {
         cos.getObjectAcl({
             Bucket: config.Bucket,
             Region: config.Region,
             Key: '1.txt'
         }, requestCallback);
     },
-    putObjectACL: function() {
+    'putObjectACL 设置对象ACL': function() {
         cos.putObjectAcl({
             Bucket: config.Bucket, // Bucket 格式：test-1250000000
             Region: config.Region,
@@ -636,7 +636,7 @@ var objectDao = {
             // }
         }, requestCallback);
     },
-    deleteMultipleObject: function() {
+    'deleteMultipleObject 批量删除对象': function() {
         cos.deleteMultipleObject({
             Bucket: config.Bucket, // Bucket 格式：test-1250000000
             Region: config.Region,
@@ -649,7 +649,7 @@ var objectDao = {
             ]
         }, requestCallback);
     },
-    putObjectCopy: function() {
+    'putObjectCopy 复制对象': function() {
         cos.putObjectCopy({
             Bucket: config.Bucket, // Bucket 格式：test-1250000000
             Region: config.Region,
@@ -657,7 +657,7 @@ var objectDao = {
             CopySource: config.Bucket + '.cos.' + config.Region + '.myqcloud.com/1.txt',
         }, requestCallback);
     },
-    restoreObject: function() {
+    'restoreObject 恢复归档对象': function() {
         cos.restoreObject({
             Bucket: config.Bucket,
             Region: config.Region,
@@ -670,7 +670,44 @@ var objectDao = {
             }
         }, requestCallback);
     },
-    abortUploadTask: function() {
+    'appendObject 追加上传': function() {
+        // 初始化一个可追加上传的对象append.txt
+        cos.appendObject({
+            Bucket: config.Bucket, // Bucket 格式：test-1250000000
+            Region: config.Region,
+            Key: 'append.txt', /* 必须 */
+            Body: '12345',
+            Position: 0,
+        },
+        function(err, data) {
+            logger.log('putObject:', err || data);
+        })
+    },
+    'appendObject_continue 继续追加上传': function() {
+        // append.txt必须是一个可追加上传的对象，参考文档：https://cloud.tencent.com/document/product/436/7741
+        cos.headObject({
+            Bucket: config.Bucket, // Bucket 格式：test-1250000000
+            Region: config.Region,
+            Key: 'append.txt', /* 必须 */
+        }, function(err, data) {
+            if (err) return console.log(err);
+            // 首先取到要追加的文件当前长度，即需要上送的Position
+            var position = data.headers['content-length'];
+            cos.appendObject({
+                Bucket: config.Bucket, // Bucket 格式：test-1250000000
+                Region: config.Region,
+                Key: 'append.txt', /* 必须 */
+                Body: '66666',
+                Position: position,
+            },
+            function(err, data) {
+                // 也可以取到下一次上传的position继续追加上传
+                // var nextPosition = data.headers['x-cos-next-append-position'];
+                logger.log('putObject:', err || data);
+            })
+        });
+    },
+    'abortUploadTask 抛弃分块上传任务': function() {
         cos.abortUploadTask({
             Bucket: config.Bucket,
             /* 必须 */ // Bucket 格式：test-1250000000
@@ -690,7 +727,7 @@ var objectDao = {
 }
 
 var advanceObjectDao = {
-    'sliceUploadFile 分片上传': function() {
+    'sliceUploadFile 分块上传': function() {
         var sliceUploadFile = function (file) {
             var key = file.name;
             cos.sliceUploadFile({
@@ -741,7 +778,7 @@ var advanceObjectDao = {
         //     }
         // })
     },
-    'sliceCopyFile 分片复制': function() {
+    'sliceCopyFile 分块复制对象': function() {
         // 创建测试文件
         var sourceName = '1.txt';
         var Key = '1.slicecopy.exe';
@@ -852,7 +889,62 @@ var ciObjectDao = {
         (err, data) => {
             console.log('不带签名', err || data);
         });
-
+    },
+    'describeMediaBuckets 查询已经开通数据万象功能的存储桶': function() {
+        var host = 'ci.' + config.Region + '.myqcloud.com';
+        var url = 'https://' + host + '/mediabucket';
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'mediabucket', /** 固定值，必须 */
+            Url: url,
+            Query: {
+                pageNumber: '1', /** 第几页，非必须 */
+                pageSize: '10', /** 每页个数，非必须 */
+                // regions: 'ap-chengdu', /** 地域信息，例如'ap-beijing'，支持多个值用逗号分隔如'ap-shanghai,ap-beijing'，非必须 */
+                // bucketNames: 'test-1250000000', /** 存储桶名称，精确搜索，例如'test-1250000000'，支持多个值用逗号分隔如'test1-1250000000,test2-1250000000'，非必须 */
+                // bucketName: 'test', /** 存储桶名称前缀，前缀搜索，例如'test'，支持多个值用逗号分隔如'test1,test2'，非必须 */
+            }
+        },
+        function(err, data){
+            console.log(err || data);
+        });
+    },
+    'getMediaInfo 获取媒体文件信息': function() {
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'test.mp4',
+            Query: {
+                'ci-process': 'videoinfo' /** 固定值，必须 */
+            }
+        },
+        function(err, data){
+            console.log(err || data);
+        });
+    },
+    'getSnapshot 获取媒体文件某个时间的截图': function() {
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'test.mp4',
+            Query: {
+                'ci-process': 'snapshot', /** 固定值，必须 */
+                time: 1, /** 截图的时间点，单位为秒，必须 */
+                // width: 0, /** 截图的宽，非必须 */
+                // height: 0, /** 截图的高，非必须 */
+                // format: 'jpg', /** 截图的格式，支持 jpg 和 png，默认 jpg，非必须 */
+                // rotate: 'auto', /** 图片旋转方式，默认为'auto'，非必须 */
+                // mode: 'exactframe', /** 截帧方式，默认为'exactframe'，非必须 */
+            },
+            RawBody: true,
+        },
+        function(err, data){
+            console.log(err || data);
+        });
     },
 }
 
diff --git a/demo/lib/cos-wx-sdk-v5.js b/demo/lib/cos-wx-sdk-v5.js
index f6be7ef..410667b 100644
--- a/demo/lib/cos-wx-sdk-v5.js
+++ b/demo/lib/cos-wx-sdk-v5.js
@@ -254,7 +254,7 @@ var getFileMd5 = function (body, callback) {
 
 function clone(obj) {
     return map(obj, function (v) {
-        return typeof v === 'object' ? clone(v) : v;
+        return typeof v === 'object' && v !== null ? clone(v) : v;
     });
 }
 
@@ -629,6 +629,13 @@ var canFileSlice = (function () {
     };
 })();
 
+var isCIHost = function(url) {
+    if (url && url.split('?')[0].match(/(.ci.|ci.|.ci)/g)) {
+        return true;
+    }
+    return false;
+}
+
 var util = {
     noop: noop,
     formatParams: formatParams,
@@ -659,6 +666,7 @@ var util = {
     getAuth: getAuth,
     compareVersion: compareVersion,
     canFileSlice: canFileSlice,
+    isCIHost: isCIHost,
 };
 
 module.exports = util;
@@ -2339,7 +2347,7 @@ base.init(COS, task);
 advance.init(COS, task);
 
 COS.getAuthorization = util.getAuth;
-COS.version = '1.0.13';
+COS.version = '1.1.0';
 
 module.exports = COS;
 
@@ -8098,6 +8106,53 @@ function multipartAbort(params, callback) {
     });
 }
 
+/**
+ * 追加上传
+ * @param  {Object}  params                                         参数对象，必须
+ *     @param  {String}  params.Bucket                              Bucket名称，必须
+ *     @param  {String}  params.Region                              地域名称，必须
+ *     @param  {String}  params.Key                                 object名称，必须
+ *     @param  {String}  params.Body                上传文件的内容，只支持字符串
+ *     @param  {Number}  params.Position                            追加操作的起始点，单位为字节，必须
+ *     @param  {String}  params.CacheControl                        RFC 2616 中定义的缓存策略，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentDisposition                  RFC 2616 中定义的文件名称，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentEncoding                     RFC 2616 中定义的编码格式，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentLength                       RFC 2616 中定义的 HTTP 请求内容长度（字节），必须
+ *     @param  {String}  params.ContentType                         RFC 2616 中定义的内容类型（MIME），将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.Expect                              当使用 Expect: 100-continue 时，在收到服务端确认后，才会发送请求内容，非必须
+ *     @param  {String}  params.Expires                             RFC 2616 中定义的过期时间，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ACL                                 允许用户自定义文件权限，有效值：private | public-read，非必须
+ *     @param  {String}  params.GrantRead                           赋予被授权者读取对象的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantReadAcp                        赋予被授权者读取对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantWriteAcp                       赋予被授权者写入对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantFullControl                    赋予被授权者操作对象的所有权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.StorageClass                        设置对象的存储级别，枚举值：STANDARD、STANDARD_IA、ARCHIVE，默认值：STANDARD，非必须
+ *     @param  {String}  params.x-cos-meta-*                        允许用户自定义的头部信息，将作为对象的元数据保存。大小限制2KB，非必须
+ *     @param  {String}  params.ContentSha1                         RFC 3174 中定义的 160-bit 内容 SHA-1 算法校验，非必须
+ *     @param  {String}  params.ServerSideEncryption                支持按照指定的加密算法进行服务端数据加密，格式 x-cos-server-side-encryption: "AES256"，非必须
+ * @param  {Function}  callback                                     回调函数，必须
+ *     @return  {Object}    err                                     请求失败的错误，如果请求成功，则为空。https://cloud.tencent.com/document/product/436/7730
+ *     @return  {Object}    data                                    返回的数据
+ */
+ function appendObject(params, callback) {
+    submitRequest.call(this, {
+        Action: 'name/cos:AppendObject',
+        method: 'POST',
+        Bucket: params.Bucket,
+        Region: params.Region,
+        action: 'append',
+        Key: params.Key,
+        body: params.Body,
+        qs: {
+          position: params.Position
+        },
+        headers: params.Headers,
+    }, function (err, data) {
+          if (err) return callback(err);
+          callback(null, data);
+    });
+}
+
 
 /**
  * cos 内置请求
@@ -8119,6 +8174,8 @@ function multipartAbort(params, callback) {
         headers: params.Headers,
         qs: params.Query,
         body: params.Body,
+        Url: params.Url,
+        rawBody: params.RawBody,
     }, function (err, data) {
         if (err) return callback(err);
         if (data && data.body) {
@@ -8616,7 +8673,7 @@ function _submitRequest(params, callback) {
     var region = params.Region;
     var object = params.Key;
     var method = params.method || 'GET';
-    var url = params.url;
+    var url = params.url || params.Url;
     var body = params.body;
     var json = params.json;
     var rawBody = params.rawBody;
@@ -8654,12 +8711,18 @@ function _submitRequest(params, callback) {
         json: json,
     };
 
+    // 兼容ci接口
+    var token = 'x-cos-security-token';
+    if (util.isCIHost(url)) {
+        token = 'x-ci-security-token';
+    }
+
     // 获取签名
     opt.headers.Authorization = params.AuthData.Authorization;
     params.AuthData.Token && (opt.headers['token'] = params.AuthData.Token);
     params.AuthData.ClientIP && (opt.headers['clientIP'] = params.AuthData.ClientIP);
     params.AuthData.ClientUA && (opt.headers['clientUA'] = params.AuthData.ClientUA);
-    params.AuthData.XCosSecurityToken && (opt.headers['x-cos-security-token'] = params.AuthData.XCosSecurityToken);
+    params.AuthData.XCosSecurityToken && (opt.headers[token] = params.AuthData.XCosSecurityToken);
 
     // 清理 undefined 和 null 字段
     opt.headers && (opt.headers = util.clearKey(opt.headers));
@@ -8811,6 +8874,7 @@ var API_MAP = {
     putObjectTagging: putObjectTagging,
     getObjectTagging: getObjectTagging,
     deleteObjectTagging: deleteObjectTagging,
+    appendObject: appendObject,
 
     // 分块上传相关方法
     uploadPartCopy: uploadPartCopy,
@@ -8840,22 +8904,47 @@ module.exports.init = function (COS, task) {
 /* 18 */
 /***/ (function(module, exports) {
 
+function camSafeUrlEncode(str) {
+  return encodeURIComponent(str)
+      .replace(/!/g, '%21')
+      .replace(/'/g, '%27')
+      .replace(/\(/g, '%28')
+      .replace(/\)/g, '%29')
+      .replace(/\*/g, '%2A');
+}
+
+function getObjectKeys(obj, forKey) {
+  var list = [];
+  for (var key in obj) {
+      if (obj.hasOwnProperty(key)) {
+          list.push(forKey ? camSafeUrlEncode(key).toLowerCase() : key);
+      }
+  }
+  return list.sort(function (a, b) {
+      a = a.toLowerCase();
+      b = b.toLowerCase();
+      return a === b ? 0 : (a > b ? 1 : -1);
+  });
+};
+
 var obj2str = function (obj) {
-    var i, key, val;
-    var list = [];
-    var keyList = Object.keys(obj);
-    for (i = 0; i < keyList.length; i++) {
-        key = keyList[i];
-        val = obj[key] || '';
-        list.push(key + '=' + encodeURIComponent(val));
-    }
-    return list.join('&');
+  var i, key, val;
+  var list = [];
+  var keyList = getObjectKeys(obj);
+  for (i = 0; i < keyList.length; i++) {
+      key = keyList[i];
+      val = (obj[key] === undefined || obj[key] === null) ? '' : ('' + obj[key]);
+      key = camSafeUrlEncode(key).toLowerCase();
+      val = camSafeUrlEncode(val) || '';
+      list.push(key + '=' + val)
+  }
+  return list.join('&');
 };
 
 var request = function (params, callback) {
     var filePath = params.filePath;
     var headers = params.headers || {};
-    var url = params.url;
+    var url = params.url || params.Url;
     var method = params.method;
     var onProgress = params.onProgress;
     var requestTask;
@@ -8894,6 +8983,7 @@ var request = function (params, callback) {
             'Expires',
             'x-cos-storage-class',
             'x-cos-security-token',
+            'x-ci-security-token',
         ];
         for (var i in params.headers) {
             if (params.headers.hasOwnProperty(i) && (i.indexOf('x-cos-meta-') > -1 || headerKeys.indexOf(i) > -1)) {
diff --git a/demo/project.config.json b/demo/project.config.json
index 42494af..674c38c 100644
--- a/demo/project.config.json
+++ b/demo/project.config.json
@@ -18,18 +18,22 @@
     "checkSiteMap": true,
     "uploadWithSourceMap": true,
     "compileHotReLoad": false,
-    "useMultiFrameRuntime": false,
+    "useMultiFrameRuntime": true,
     "useApiHook": true,
+    "useApiHostProcess": true,
     "babelSetting": {
       "ignore": [],
       "disablePlugins": [],
       "outputPath": ""
     },
+    "enableEngineNative": false,
     "useIsolateContext": true,
     "useCompilerModule": true,
     "userConfirmedUseCompilerModuleSwitch": false,
+    "userConfirmedBundleSwitch": false,
     "packNpmManually": false,
-    "packNpmRelationList": []
+    "packNpmRelationList": [],
+    "minifyWXSS": true
   },
   "compileType": "miniprogram",
   "libVersion": "1.6.0",
diff --git a/demo/test.js b/demo/test.js
index 2fcc7ca..a2f4721 100644
--- a/demo/test.js
+++ b/demo/test.js
@@ -1,8 +1,14 @@
 var COS = require('./lib/cos-wx-sdk-v5');
 var wxfs = wx.getFileSystemManager();
 var config = require('./config');
+// 这里替换成自己的Uin （账号ID查询：https://console.cloud.tencent.com/developer）
 config.Uin = '10001';
 
+/**
+ * 测试须知
+ * 需要本地准备一个名为 5m.zip,大小为5mb的文件进行初始化上传
+**/
+
 var util = {
     createFile: function (options, filePath) {
         var buffer = new ArrayBuffer(options.size || 0);
@@ -364,7 +370,7 @@ group('putObject(),cancelTask()', function () {
             Bucket: config.Bucket,
             Region: config.Region,
             Key: filename,
-            Body: util.createFile({size: 1024 * 1024 * 100}),
+            Body: util.createFile({size: 1024 * 1024 * 10}),
             onTaskReady: function (taskId) {
                 TaskId = taskId;
             },
@@ -391,8 +397,8 @@ group('putObject(),cancelTask()', function () {
 group('sliceUploadFile() 完整上传文件', function () {
     test('sliceUploadFile() 完整上传文件', function (done, assert) {
         var lastPercent;
-        var filename = '3m.zip';
-        var fileSize = 1024 * 1024 * 3;
+        var filename = '5m.zip';
+        var fileSize = 1024 * 1024 * 5;
         cos.abortUploadTask({
             Bucket: config.Bucket,
             Region: config.Region,
@@ -473,8 +479,8 @@ group('sliceUploadFile(),pauseTask(),restartTask()', function () {
 
 group('sliceUploadFile(),cancelTask()', function () {
     test('sliceUploadFile(),cancelTask()', function (done, assert) {
-        var filename = '3m.zip';
-        var blob = util.createFile({size: 1024 * 1024 * 3});
+        var filename = '5m.zip';
+        var blob = util.createFile({size: 1024 * 1024 * 5});
         var alive = false;
         var canceled = false;
         cos.sliceUploadFile({
@@ -2840,3 +2846,91 @@ group('Query 的键值带有特殊字符', function () {
         });
     });
 });
+
+group('appendObject', function () {
+    test('appendObject()', function (done, assert) {
+        cos.headObject({
+            Bucket: config.Bucket, // Bucket 格式：test-1250000000
+            Region: config.Region,
+            Key: 'append.txt', /* 必须 */
+        }, function(err, data) {
+            assert.ok(!err);
+            if (err) return console.log(err);
+            // 首先取到要追加的文件当前长度，即需要上送的Position
+            var position = data.headers['content-length'];
+            cos.appendObject({
+                Bucket: config.Bucket, // Bucket 格式：test-1250000000
+                Region: config.Region,
+                Key: 'append.txt', /* 必须 */
+                Body: '66666',
+                Position: position,
+            },
+            function(err, data) {
+                assert.ok(!err);
+                done();
+            })
+        });
+    });
+});
+
+group('数据万象', function () {
+    test('describeMediaBuckets()', function (done, assert) {
+        var host = 'ci.' + config.Region + '.myqcloud.com';
+        var url = 'https://' + host + '/mediabucket';
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'mediabucket', /** 固定值，必须 */
+            Url: url,
+            Query: {
+                pageNumber: '1', /** 第几页，非必须 */
+                pageSize: '10', /** 每页个数，非必须 */
+                // regions: 'ap-chengdu', /** 地域信息，例如'ap-beijing'，支持多个值用逗号分隔如'ap-shanghai,ap-beijing'，非必须 */
+                // bucketNames: 'test-1250000000', /** 存储桶名称，精确搜索，例如'test-1250000000'，支持多个值用逗号分隔如'test1-1250000000,test2-1250000000'，非必须 */
+                // bucketName: 'test', /** 存储桶名称前缀，前缀搜索，例如'test'，支持多个值用逗号分隔如'test1,test2'，非必须 */
+            }
+        },
+        function(err, data){
+            assert.ok(!err);
+            done();
+        });
+    });
+    test('getMediaInfo()', function (done, assert) {
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'test.mp4',
+            Query: {
+                'ci-process': 'videoinfo' /** 固定值，必须 */
+            }
+        },
+        function(err, data){
+            assert.ok(!err);
+            done();
+        });
+    });
+    test('getSnapshot()', function (done, assert) {
+        cos.request({
+            Bucket: config.Bucket,
+            Region: config.Region,
+            Method: 'GET',
+            Key: 'test.mp4',
+            Query: {
+                'ci-process': 'snapshot', /** 固定值，必须 */
+                time: 1, /** 截图的时间点，单位为秒，必须 */
+                // width: 0, /** 截图的宽，非必须 */
+                // height: 0, /** 截图的高，非必须 */
+                // format: 'jpg', /** 截图的格式，支持 jpg 和 png，默认 jpg，非必须 */
+                // rotate: 'auto', /** 图片旋转方式，默认为'auto'，非必须 */
+                // mode: 'exactframe', /** 截帧方式，默认为'exactframe'，非必须 */
+            },
+            RawBody: true,
+        },
+        function(err, data){
+            assert.ok(!err);
+            done();
+        });
+    });
+  });
diff --git a/lib/request.js b/lib/request.js
index d5fdbb4..60b2d9f 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -1,19 +1,44 @@
+function camSafeUrlEncode(str) {
+  return encodeURIComponent(str)
+      .replace(/!/g, '%21')
+      .replace(/'/g, '%27')
+      .replace(/\(/g, '%28')
+      .replace(/\)/g, '%29')
+      .replace(/\*/g, '%2A');
+}
+
+function getObjectKeys(obj, forKey) {
+  var list = [];
+  for (var key in obj) {
+      if (obj.hasOwnProperty(key)) {
+          list.push(forKey ? camSafeUrlEncode(key).toLowerCase() : key);
+      }
+  }
+  return list.sort(function (a, b) {
+      a = a.toLowerCase();
+      b = b.toLowerCase();
+      return a === b ? 0 : (a > b ? 1 : -1);
+  });
+};
+
 var obj2str = function (obj) {
-    var i, key, val;
-    var list = [];
-    var keyList = Object.keys(obj);
-    for (i = 0; i < keyList.length; i++) {
-        key = keyList[i];
-        val = obj[key] || '';
-        list.push(key + '=' + encodeURIComponent(val));
-    }
-    return list.join('&');
+  var i, key, val;
+  var list = [];
+  var keyList = getObjectKeys(obj);
+  for (i = 0; i < keyList.length; i++) {
+      key = keyList[i];
+      val = (obj[key] === undefined || obj[key] === null) ? '' : ('' + obj[key]);
+      key = camSafeUrlEncode(key).toLowerCase();
+      val = camSafeUrlEncode(val) || '';
+      list.push(key + '=' + val)
+  }
+  return list.join('&');
 };
 
 var request = function (params, callback) {
     var filePath = params.filePath;
     var headers = params.headers || {};
-    var url = params.url;
+    var url = params.url || params.Url;
     var method = params.method;
     var onProgress = params.onProgress;
     var requestTask;
@@ -52,6 +77,7 @@ var request = function (params, callback) {
             'Expires',
             'x-cos-storage-class',
             'x-cos-security-token',
+            'x-ci-security-token',
         ];
         for (var i in params.headers) {
             if (params.headers.hasOwnProperty(i) && (i.indexOf('x-cos-meta-') > -1 || headerKeys.indexOf(i) > -1)) {
diff --git a/package.json b/package.json
index 593001e..006da04 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cos-wx-sdk-v5",
-  "version": "1.0.13",
+  "version": "1.1.0",
   "description": "小程序 SDK for [腾讯云对象存储服务](https://cloud.tencent.com/product/cos)",
   "main": "demo/lib/cos-wx-sdk-v5.js",
   "scripts": {
diff --git a/src/base.js b/src/base.js
index ee2b6bf..b7cee82 100644
--- a/src/base.js
+++ b/src/base.js
@@ -2802,6 +2802,53 @@ function multipartAbort(params, callback) {
     });
 }
 
+/**
+ * 追加上传
+ * @param  {Object}  params                                         参数对象，必须
+ *     @param  {String}  params.Bucket                              Bucket名称，必须
+ *     @param  {String}  params.Region                              地域名称，必须
+ *     @param  {String}  params.Key                                 object名称，必须
+ *     @param  {String}  params.Body                上传文件的内容，只支持字符串
+ *     @param  {Number}  params.Position                            追加操作的起始点，单位为字节，必须
+ *     @param  {String}  params.CacheControl                        RFC 2616 中定义的缓存策略，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentDisposition                  RFC 2616 中定义的文件名称，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentEncoding                     RFC 2616 中定义的编码格式，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ContentLength                       RFC 2616 中定义的 HTTP 请求内容长度（字节），必须
+ *     @param  {String}  params.ContentType                         RFC 2616 中定义的内容类型（MIME），将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.Expect                              当使用 Expect: 100-continue 时，在收到服务端确认后，才会发送请求内容，非必须
+ *     @param  {String}  params.Expires                             RFC 2616 中定义的过期时间，将作为 Object 元数据保存，非必须
+ *     @param  {String}  params.ACL                                 允许用户自定义文件权限，有效值：private | public-read，非必须
+ *     @param  {String}  params.GrantRead                           赋予被授权者读取对象的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantReadAcp                        赋予被授权者读取对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantWriteAcp                       赋予被授权者写入对象的访问控制列表（ACL）的权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.GrantFullControl                    赋予被授权者操作对象的所有权限，格式：id="[OwnerUin]"，可使用半角逗号（,）分隔多组被授权者，非必须
+ *     @param  {String}  params.StorageClass                        设置对象的存储级别，枚举值：STANDARD、STANDARD_IA、ARCHIVE，默认值：STANDARD，非必须
+ *     @param  {String}  params.x-cos-meta-*                        允许用户自定义的头部信息，将作为对象的元数据保存。大小限制2KB，非必须
+ *     @param  {String}  params.ContentSha1                         RFC 3174 中定义的 160-bit 内容 SHA-1 算法校验，非必须
+ *     @param  {String}  params.ServerSideEncryption                支持按照指定的加密算法进行服务端数据加密，格式 x-cos-server-side-encryption: "AES256"，非必须
+ * @param  {Function}  callback                                     回调函数，必须
+ *     @return  {Object}    err                                     请求失败的错误，如果请求成功，则为空。https://cloud.tencent.com/document/product/436/7730
+ *     @return  {Object}    data                                    返回的数据
+ */
+ function appendObject(params, callback) {
+    submitRequest.call(this, {
+        Action: 'name/cos:AppendObject',
+        method: 'POST',
+        Bucket: params.Bucket,
+        Region: params.Region,
+        action: 'append',
+        Key: params.Key,
+        body: params.Body,
+        qs: {
+          position: params.Position
+        },
+        headers: params.Headers,
+    }, function (err, data) {
+          if (err) return callback(err);
+          callback(null, data);
+    });
+}
+
 
 /**
  * cos 内置请求
@@ -2823,6 +2870,8 @@ function multipartAbort(params, callback) {
         headers: params.Headers,
         qs: params.Query,
         body: params.Body,
+        Url: params.Url,
+        rawBody: params.RawBody,
     }, function (err, data) {
         if (err) return callback(err);
         if (data && data.body) {
@@ -3320,7 +3369,7 @@ function _submitRequest(params, callback) {
     var region = params.Region;
     var object = params.Key;
     var method = params.method || 'GET';
-    var url = params.url;
+    var url = params.url || params.Url;
     var body = params.body;
     var json = params.json;
     var rawBody = params.rawBody;
@@ -3358,12 +3407,18 @@ function _submitRequest(params, callback) {
         json: json,
     };
 
+    // 兼容ci接口
+    var token = 'x-cos-security-token';
+    if (util.isCIHost(url)) {
+        token = 'x-ci-security-token';
+    }
+
     // 获取签名
     opt.headers.Authorization = params.AuthData.Authorization;
     params.AuthData.Token && (opt.headers['token'] = params.AuthData.Token);
     params.AuthData.ClientIP && (opt.headers['clientIP'] = params.AuthData.ClientIP);
     params.AuthData.ClientUA && (opt.headers['clientUA'] = params.AuthData.ClientUA);
-    params.AuthData.XCosSecurityToken && (opt.headers['x-cos-security-token'] = params.AuthData.XCosSecurityToken);
+    params.AuthData.XCosSecurityToken && (opt.headers[token] = params.AuthData.XCosSecurityToken);
 
     // 清理 undefined 和 null 字段
     opt.headers && (opt.headers = util.clearKey(opt.headers));
@@ -3515,6 +3570,7 @@ var API_MAP = {
     putObjectTagging: putObjectTagging,
     getObjectTagging: getObjectTagging,
     deleteObjectTagging: deleteObjectTagging,
+    appendObject: appendObject,
 
     // 分块上传相关方法
     uploadPartCopy: uploadPartCopy,
diff --git a/src/cos.js b/src/cos.js
index 7c7de0b..adc6a3f 100644
--- a/src/cos.js
+++ b/src/cos.js
@@ -57,6 +57,6 @@ base.init(COS, task);
 advance.init(COS, task);
 
 COS.getAuthorization = util.getAuth;
-COS.version = '1.0.13';
+COS.version = '1.1.0';
 
 module.exports = COS;
diff --git a/src/util.js b/src/util.js
index e874f85..b8d20da 100644
--- a/src/util.js
+++ b/src/util.js
@@ -174,7 +174,7 @@ var getFileMd5 = function (body, callback) {
 
 function clone(obj) {
     return map(obj, function (v) {
-        return typeof v === 'object' ? clone(v) : v;
+        return typeof v === 'object' && v !== null ? clone(v) : v;
     });
 }
 
@@ -549,6 +549,13 @@ var canFileSlice = (function () {
     };
 })();
 
+var isCIHost = function(url) {
+    if (url && url.split('?')[0].match(/(.ci.|ci.|.ci)/g)) {
+        return true;
+    }
+    return false;
+}
+
 var util = {
     noop: noop,
     formatParams: formatParams,
@@ -579,6 +586,7 @@ var util = {
     getAuth: getAuth,
     compareVersion: compareVersion,
     canFileSlice: canFileSlice,
+    isCIHost: isCIHost,
 };
 
 module.exports = util;