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motoko9 · Aug 28, 2022 · 53ce8cb · 53ce8cb
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diff --git a/helloworld/README.md b/helloworld/README.md
@@ -0,0 +1,142 @@
+# Token
+
+## Prerequisites
+
+[Install Aptos CLI](https://aptos.dev/cli-tools/aptos-cli-tool/install-aptos-cli)
+
+[Create an account and fund](https://aptos.dev/cli-tools/aptos-cli-tool/use-aptos-cli)
+
+## Build Module
+
+```
+aptos move compile --package-dir . --named-addresses NamedAddr=0x5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510
+```
+
+```
+{
+  "Result": [
+    "5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510::helloworld"
+  ]
+}
+```
+
+## Publish Module
+
+```
+aptos move publish --package-dir . --named-addresses NamedAddr=0x5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510
+```
+
+```
+package size 1660 bytes
+{
+  "Result": {
+    "transaction_hash": "0xec24b2c091d0c02a55a2caa223e9883fa10bfb62a920967b0b694dcebe14e61b",
+    "gas_used": 189,
+    "gas_unit_price": 1,
+    "sender": "5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510",
+    "sequence_number": 0,
+    "success": true,
+    "timestamp_us": 1661650597217213,
+    "version": 10901294,
+    "vm_status": "Executed successfully"
+  }
+}
+```
+
+check publish successful.
+
+```
+aptos account list --query modules --account 0x5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510
+```
+
+we can see account modules.
+
+```
+{
+  "Result": [
+    {
+      "bytecode": "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",
+      "abi": {
+        "address": "0x5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510",
+        "name": "helloworld",
+        "friends": [],
+        "exposed_functions": [
+          {
+            "name": "get_message",
+            "visibility": "public",
+            "is_entry": false,
+            "generic_type_params": [],
+            "params": [
+              "address"
+            ],
+            "return": [
+              "0x1::string::String"
+            ]
+          },
+          {
+            "name": "set_message",
+            "visibility": "public",
+            "is_entry": true,
+            "generic_type_params": [],
+            "params": [
+              "signer",
+              "0x1::string::String"
+            ],
+            "return": []
+          }
+        ],
+        "structs": [
+          {
+            "name": "MessageChangeEvent",
+            "is_native": false,
+            "abilities": [
+              "drop",
+              "store"
+            ],
+            "generic_type_params": [],
+            "fields": [
+              {
+                "name": "from_message",
+                "type": "0x1::string::String"
+              },
+              {
+                "name": "to_message",
+                "type": "0x1::string::String"
+              }
+            ]
+          },
+          {
+            "name": "MessageHolder",
+            "is_native": false,
+            "abilities": [
+              "key"
+            ],
+            "generic_type_params": [],
+            "fields": [
+              {
+                "name": "message",
+                "type": "0x1::string::String"
+              },
+              {
+                "name": "message_change_events",
+                "type": "0x1::event::EventHandle<0x5e7f8779c8c26ec3cbba37337142b2aaa2291b4779f4b386a0de83da177df510::helloworld::MessageChangeEvent>"
+              }
+            ]
+          }
+        ]
+      }
+    }
+  ]
+}
+
+```
+
+## set message
+
+```
+
+```
+
+## read message
+
+
diff --git a/helloworld/contract/Move.toml b/helloworld/contract/Move.toml
@@ -0,0 +1,9 @@
+[package]
+name = "helloworld"
+version = "0.0.0"
+
+[dependencies]
+AptosFramework = { git = "https://github.com/aptos-labs/aptos-core.git", subdir = "aptos-move/framework/aptos-framework", rev = "devnet" }
+
+[addresses]
+NamedAddr =  "_"
diff --git a/helloworld/contract/sources/helloworld.move b/helloworld/contract/sources/helloworld.move
@@ -0,0 +1,58 @@
+module NamedAddr::helloworld {
+    use std::error;
+    use std::signer;
+    use std::string;
+    use aptos_framework::account;
+    use aptos_std::event;
+
+//:!:>resource
+    struct MessageHolder has key {
+        message: string::String,
+        message_change_events: event::EventHandle<MessageChangeEvent>,
+    }
+//<:!:resource
+
+    struct MessageChangeEvent has drop, store {
+        from_message: string::String,
+        to_message: string::String,
+    }
+
+    /// There is no message present
+    const ENO_MESSAGE: u64 = 0;
+
+    public fun get_message(addr: address): string::String acquires MessageHolder {
+        assert!(exists<MessageHolder>(addr), error::not_found(ENO_MESSAGE));
+        *&borrow_global<MessageHolder>(addr).message
+    }
+
+    public entry fun set_message(account: signer, message: string::String)
+    acquires MessageHolder {
+        let account_addr = signer::address_of(&account);
+        if (!exists<MessageHolder>(account_addr)) {
+            move_to(&account, MessageHolder {
+                message,
+                message_change_events: account::new_event_handle<MessageChangeEvent>(&account),
+            })
+        } else {
+            let old_message_holder = borrow_global_mut<MessageHolder>(account_addr);
+            let from_message = *&old_message_holder.message;
+            event::emit_event(&mut old_message_holder.message_change_events, MessageChangeEvent {
+                from_message,
+                to_message: copy message,
+            });
+            old_message_holder.message = message;
+        }
+    }
+
+    #[test(account = @0x1)]
+    public entry fun sender_can_set_message(account: signer) acquires MessageHolder {
+        let addr = signer::address_of(&account);
+        aptos_framework::account::create_account_for_test(addr);
+        set_message(account,  string::utf8(b"Hello, Blockchain"));
+
+        assert!(
+          get_message(addr) == string::utf8(b"Hello, Blockchain"),
+          ENO_MESSAGE
+        );
+    }
+}
diff --git a/token-in-native/contract/Move.toml b/token-in-native/contract/Move.toml
@@ -3,7 +3,7 @@ name = "usdt"
 version = "0.0.0"
 
 [dependencies]
-MoveStdlib = { git = "https://github.com/move-language/move.git", subdir = "language/move-stdlib", rev = "main" }
+MoveStdlib = { git = "https://github.com/move-language/move.git", subdir = "language/move-stdlib", rev = "devnet" }
 
 [addresses]
 std = "0x1"

diff --git a/token-in-native/contract/sources/usdt.move b/token-in-native/contract/sources/usdt.move
@@ -1,3 +1,3 @@
 module NamedAddr::usdt {
-    struct USDTCoin {}
+    struct USDT {}
 }