diff --git a/22_day/Makefile b/22_day/Makefile
index 3718ae8..0c48339 100644
--- a/22_day/Makefile
+++ b/22_day/Makefile
@@ -80,19 +80,6 @@ hello5.bim : hello5.obj Makefile
 hello5.hrb : hello5.bim Makefile
 	$(BIM2HRB) hello5.bim hello5.hrb 0
 
-winhelo.bim : winhelo.obj a_nask.obj Makefile
-	$(OBJ2BIM) @$(RULEFILE) out:winhelo.bim stack:1k map:winhelo.map \
-		winhelo.obj a_nask.obj
-
-winhelo.hrb : winhelo.bim Makefile
-	$(BIM2HRB) winhelo.bim winhelo.hrb 0
-
-bug1.bim : bug1.obj Makefile
-	$(OBJ2BIM) @$(RULEFILE) out:bug1.bim map:bug1.map bug1.obj a_nask.obj
-
-bug1.hrb : bug1.bim Makefile
-	$(BIM2HRB) bug1.bim bug1.hrb 0
-
 bug2.bim : bug2.obj Makefile
 	$(OBJ2BIM) @$(RULEFILE) out:bug2.bim map:bug2.map bug2.obj
 
@@ -105,9 +92,23 @@ bug3.bim : bug3.obj Makefile
 bug3.hrb : bug3.bim Makefile
 	$(BIM2HRB) bug3.bim bug3.hrb 0
 
+winhelo.bim : winhelo.obj a_nask.obj Makefile
+	$(OBJ2BIM) @$(RULEFILE) out:winhelo.bim stack:1k map:winhelo.map \
+		winhelo.obj a_nask.obj
+
+winhelo.hrb : winhelo.bim Makefile
+	$(BIM2HRB) winhelo.bim winhelo.hrb 0
+
+winhelo2.bim : winhelo2.obj a_nask.obj Makefile
+	$(OBJ2BIM) @$(RULEFILE) out:winhelo2.bim stack:1k map:winhelo2.map \
+		winhelo2.obj a_nask.obj
+
+winhelo2.hrb : winhelo2.bim Makefile
+	$(BIM2HRB) winhelo2.bim winhelo2.hrb 0
+
 haribote.img : ipl10.bin haribote.sys Makefile \
-		hello.hrb hello2.hrb a.hrb hello3.hrb bug1.hrb bug2.hrb bug3.hrb \
-		hello4.hrb hello5.hrb winhelo.hrb
+		hello.hrb hello2.hrb a.hrb hello3.hrb hello4.hrb hello5.hrb \
+		winhelo.hrb winhelo2.hrb
 	$(EDIMG)   imgin:../z_tools/fdimg0at.tek \
 		wbinimg src:ipl10.bin len:512 from:0 to:0 \
 		copy from:haribote.sys to:@: \
@@ -117,12 +118,10 @@ haribote.img : ipl10.bin haribote.sys Makefile \
 		copy from:hello2.hrb to:@: \
 		copy from:a.hrb to:@: \
 		copy from:hello3.hrb to:@: \
-		copy from:bug1.hrb to:@: \
-		copy from:bug2.hrb to:@: \
-		copy from:bug3.hrb to:@: \
 		copy from:hello4.hrb to:@: \
 		copy from:hello5.hrb to:@: \
 		copy from:winhelo.hrb to:@: \
+		copy from:winhelo2.hrb to:@: \
 		imgout:haribote.img
 
 # 其他指令
diff --git a/22_day/a_nask.nas b/22_day/a_nask.nas
index d02e6ea..66b7bd9 100644
--- a/22_day/a_nask.nas
+++ b/22_day/a_nask.nas
@@ -7,6 +7,8 @@
 		GLOBAL	_api_putstr0
 		GLOBAL	_api_end
 		GLOBAL	_api_openwin
+		GLOBAL	_api_putstrwin
+		GLOBAL	_api_boxfilwin
 
 [SECTION .text]
 
@@ -43,3 +45,41 @@ _api_openwin:	; int api_openwin(char *buf, int xsiz, int ysiz, int col_inv, char
 		POP		ESI
 		POP		EDI
 		RET
+
+_api_putstrwin:	; void api_putstrwin(int win, int x, int y, int col, int len, char *str);
+		PUSH	EDI
+		PUSH	ESI
+		PUSH	EBP
+		PUSH	EBX
+		MOV		EDX,6
+		MOV		EBX,[ESP+20]	; win
+		MOV		ESI,[ESP+24]	; x
+		MOV		EDI,[ESP+28]	; y
+		MOV		EAX,[ESP+32]	; col
+		MOV		ECX,[ESP+36]	; len
+		MOV		EBP,[ESP+40]	; str
+		INT		0x40
+		POP		EBX
+		POP		EBP
+		POP		ESI
+		POP		EDI
+		RET
+
+_api_boxfilwin:	; void api_boxfilwin(int win, int x0, int y0, int x1, int y1, int col);
+		PUSH	EDI
+		PUSH	ESI
+		PUSH	EBP
+		PUSH	EBX
+		MOV		EDX,7
+		MOV		EBX,[ESP+20]	; win
+		MOV		EAX,[ESP+24]	; x0
+		MOV		ECX,[ESP+28]	; y0
+		MOV		ESI,[ESP+32]	; x1
+		MOV		EDI,[ESP+36]	; y1
+		MOV		EBP,[ESP+40]	; col
+		INT		0x40
+		POP		EBX
+		POP		EBP
+		POP		ESI
+		POP		EDI
+		RET
diff --git a/22_day/bug1.c b/22_day/bug1.c
deleted file mode 100644
index 1430edf..0000000
--- a/22_day/bug1.c
+++ /dev/null
@@ -1,13 +0,0 @@
-void api_putchar(int c);
-void api_end(void);
-
-void HariMain(void){
-	char a[100];
-	a[10] = 'A'; /*这句当然没有问题*/
-	api_putchar(a[10]);
-	a[102] = 'B'; /*这句就有问题了*/
-	api_putchar(a[102]);
-	a[123] = 'C'; /*这句也有问题了*/
-	api_putchar(a[123]);
-	api_end();
-}
\ No newline at end of file
diff --git a/22_day/console.c b/22_day/console.c
index f3eb8be..b2ff811 100644
--- a/22_day/console.c
+++ b/22_day/console.c
@@ -336,6 +336,14 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		sheet_slide(sht, 100, 50);
 		sheet_updown(sht, 3); /*背景层高度3位于task_a之上*/
 		reg[7] = (int) sht; 
+	} else if (edx == 6) {
+		sht = (struct SHEET *) ebx;
+		putfonts8_asc(sht->buf, sht->bxsize, esi, edi, eax, (char *) ebp + ds_base);
+		sheet_refresh(sht, esi, edi, esi + ecx * 8, edi + 16);
+	} else if (edx == 7) {
+		sht = (struct SHEET *) ebx;
+		boxfill8(sht->buf, sht->bxsize, ebp, eax, ecx, esi, edi);
+		sheet_refresh(sht, eax, ecx, esi + 1, edi + 1);
 	}
 	return 0;
 }
diff --git a/22_day/winhelo2.c b/22_day/winhelo2.c
new file mode 100644
index 0000000..f00b007
--- /dev/null
+++ b/22_day/winhelo2.c
@@ -0,0 +1,15 @@
+int api_openwin(char *buf, int xsiz, int ysiz, int col_inv, char *title);
+void api_putstrwin(int win, int x, int y, int col, int len, char *str);
+void api_boxfilwin(int win, int x0, int y0, int x1, int y1, int col);
+void api_end(void);
+
+char buf[150 * 50];
+
+void HariMain(void)
+{
+	int win;
+	win = api_openwin(buf, 150, 50, -1, "hello");
+	api_boxfilwin(win,  8, 36, 141, 43, 3); /*黄色*/
+	api_putstrwin(win, 28, 28, 0 /*黑色*/, 12, "hello, world");
+	api_end();
+}