diff --git a/25_day/bootpack.c b/25_day/bootpack.c
index 8a2a773..d2aa307 100644
--- a/25_day/bootpack.c
+++ b/25_day/bootpack.c
@@ -14,17 +14,17 @@ void HariMain(void)
 	struct SHTCTL *shtctl;
 	char s[40];
 	struct FIFO32 fifo, keycmd;
-	int fifobuf[128], keycmd_buf[32], *cons_fifo[2]; 
+	int fifobuf[128], keycmd_buf[32], *cons_fifo[2];
 	int mx, my, i;
 	unsigned int memtotal;
 	struct MOUSE_DEC mdec;
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
 	unsigned char *buf_back, buf_mouse[256], *buf_cons[2];
-	struct SHEET *sht_back, *sht_mouse, *sht_win, *sht_cons[2];
+	struct SHEET *sht_back, *sht_mouse, *sht_cons[2];
 	struct TASK *task_a, *task_cons[2], *task;
 	static char keytable0[0x80] = {
-		0,   0,   '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '^', 0,   0,
-		'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '@', '[', 0,   0,   'A', 'S',
+		0,   0,   '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '^', 0x08, 0,
+		'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '@', '[', 0x0a, 0, 'A', 'S',
 		'D', 'F', 'G', 'H', 'J', 'K', 'L', ';', ':', 0,   0,   ']', 'Z', 'X', 'C', 'V',
 		'B', 'N', 'M', ',', '.', '/', 0,   '*', 0,   ' ', 0,   0,   0,   0,   0,   0,
 		0,   0,   0,   0,   0,   0,   0,   '7', '8', '9', '-', '4', '5', '6', '+', '1',
@@ -33,8 +33,8 @@ void HariMain(void)
 		0,   0,   0,   0x5c, 0,  0,   0,   0,   0,   0,   0,   0,   0,   0x5c, 0,  0
 	};
 	static char keytable1[0x80] = {
-		0,   0,   '!', 0x22, '#', '$', '%', '&', 0x27, '(', ')', '~', '=', '~', 0,   0,
-		'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '`', '{', 0,   0,   'A', 'S',
+		0,   0,   '!', 0x22, '#', '$', '%', '&', 0x27, '(', ')', '~', '=', '~', 0x08, 0,
+		'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '`', '{', 0x0a, 0, 'A', 'S',
 		'D', 'F', 'G', 'H', 'J', 'K', 'L', '+', '*', 0,   0,   '}', 'Z', 'X', 'C', 'V',
 		'B', 'N', 'M', '<', '>', '?', 0,   '*', 0,   ' ', 0,   0,   0,   0,   0,   0,
 		0,   0,   0,   0,   0,   0,   0,   '7', '8', '9', '-', '4', '5', '6', '+', '1',
@@ -43,7 +43,6 @@ void HariMain(void)
 		0,   0,   0,   '_', 0,   0,   0,   0,   0,   0,   0,   0,   0,   '|', 0,   0
 	};
 	int key_shift = 0, key_leds = (binfo->leds >> 4) & 7, keycmd_wait = -1;
-	struct CONSOLE *cons;
 	int j, x, y, mmx = -1, mmy = -1;
 	struct SHEET *sht = 0, *key_win;
 
@@ -109,15 +108,15 @@ void HariMain(void)
 	my = (binfo->scrny - 28 - 16) / 2;
 
 	sheet_slide(sht_back,  0,  0);
-	sheet_slide(sht_cons[1], 56, 6);
-	sheet_slide(sht_cons[0], 8, 2);
-	sheet_slide(sht_win,  64, 56);
+	sheet_slide(sht_cons[1], 56,  6);
+	sheet_slide(sht_cons[0],  8,  2);
 	sheet_slide(sht_mouse, mx, my);
-	sheet_updown(sht_back,  0);
-	sheet_updown(sht_cons[1], 1);
-	sheet_updown(sht_cons[0], 2);
-	sheet_updown(sht_mouse, 3);
+	sheet_updown(sht_back,     0);
+	sheet_updown(sht_cons[1],  1);
+	sheet_updown(sht_cons[0],  2);
+	sheet_updown(sht_mouse,    3);
 	key_win = sht_cons[0];
+	keywin_on(key_win);
 
 	/*为了避免和键盘当前状态冲突，在一开始先进行设置*/
 	fifo32_put(&keycmd, KEYCMD_LED);
@@ -125,7 +124,7 @@ void HariMain(void)
 
 	for (;;) {
 		if (fifo32_status(&keycmd) > 0 && keycmd_wait < 0) {
-			/*如果存在向键盘控制器发送的数据，则发送它 */
+			/* �L�[�{�[�h�R���g���[���ɑ���f�[�^������΁A���� */
 			keycmd_wait = fifo32_get(&keycmd);
 			wait_KBC_sendready();
 			io_out8(PORT_KEYDAT, keycmd_wait);
@@ -139,6 +138,7 @@ void HariMain(void)
 			io_sti();
 			if (key_win->flags == 0) { /*输入窗口被关闭*/
 				key_win = shtctl->sheets[shtctl->top - 1];
+				keywin_on(key_win);
 			}
 			if (256 <= i && i <= 511) { /* 键盘数据*/
 				if (i < 0x80 + 256) { /*将按键编码转换为字符编码*/
@@ -151,7 +151,8 @@ void HariMain(void)
 					s[0] = 0;
 				}
 				if ('A' <= s[0] && s[0] <= 'Z') { /*当输入字符为英文字母时*/
-					if (((key_leds & 4) == 0 && key_shift == 0) ||((key_leds & 4) != 0 && key_shift != 0)) {
+					if (((key_leds & 4) == 0 && key_shift == 0) ||
+							((key_leds & 4) != 0 && key_shift != 0)) {
 						s[0] += 0x20; /*将大写字母转换为小写字母*/
 					}
 				}
@@ -196,15 +197,15 @@ void HariMain(void)
 				}
 				if (i == 256 + 0x3b && key_shift != 0) {
 					task = key_win->task;
-					if (task != 0 && task->tss.ss0 != 0) { /* Shift+F1 */
-						cons_putstr0(cons, "\nBreak(key) :\n");
+					if (task != 0 && task->tss.ss0 != 0) {	/* Shift+F1 */
+						cons_putstr0(task->cons, "\nBreak(key) :\n");
 						io_cli(); /*强制结束处理时禁止任务切换*/
 						task->tss.eax = (int) &(task->tss.esp0);
 						task->tss.eip = (int) asm_end_app;
 						io_sti();
 					}
 				}
-				if (i == 256 + 0x57 && shtctl->top > 2) { /* F11 */
+				if (i == 256 + 0x57) {	/* F11 */
 					sheet_updown(shtctl->sheets[1], shtctl->top - 1);
 				}
 				if (i == 256 + 0xfa) { /*键盘成功接收到数据*/
@@ -231,9 +232,7 @@ void HariMain(void)
 					if (my > binfo->scrny - 1) {
 						my = binfo->scrny - 1;
 					}
-
 					sheet_slide(sht_mouse, mx, my);/* 包含sheet_refresh含sheet_refresh */
-
 					if ((mdec.btn & 0x01) != 0) { /* 按下左键 */
 						if (mmx < 0) {
 							/*如果处于通常模式*/
@@ -254,13 +253,13 @@ void HariMain(void)
 											mmx = mx; /*进入窗口移动模式*/
 											mmy = my;
 										}
-										if (sht->bxsize - 21 <= x && x < sht->bxsize - 5 && 5 <=y && y < 19) {
+										if (sht->bxsize - 21 <= x && x < sht->bxsize - 5 && 5 <= y && y < 19) {
 											/*点击“×”按钮*/
 											if ((sht->flags & 0x10) != 0) { /*该窗口是否为应用程序窗口？*/
 												task = sht->task;
-												cons_putstr0(cons, "\nBreak(mouse) :\n");
+												cons_putstr0(task->cons, "\nBreak(mouse) :\n");
 												io_cli(); /*强制结束处理时禁止任务切换*/
-												task->tss.eax = (int) &(task->tss.esp0);/*到此结束*/
+												task->tss.eax = (int) &(task->tss.esp0);
 												task->tss.eip = (int) asm_end_app;
 												io_sti();
 											}
@@ -279,9 +278,8 @@ void HariMain(void)
 						}
 					} else {
 						/*没有按下左键*/
-						mmx = -1; /*返回通常模式*/
+						mmx = -1;	/*返回通常模式*/
 					}
-
 				}
 			}
 		}
diff --git a/25_day/bootpack.h b/25_day/bootpack.h
index 5f6554d..9975f09 100644
--- a/25_day/bootpack.h
+++ b/25_day/bootpack.h
@@ -28,7 +28,6 @@ void asm_inthandler0c(void);
 void asm_inthandler0d(void);
 void asm_inthandler20(void);
 void asm_inthandler21(void);
-void asm_inthandler27(void);
 void asm_inthandler2c(void);
 unsigned int memtest_sub(unsigned int start, unsigned int end);
 void farjmp(int eip, int cs);
@@ -102,7 +101,6 @@ void set_gatedesc(struct GATE_DESCRIPTOR *gd, int offset, int selector, int ar);
 
 /* int.c */
 void init_pic(void);
-void inthandler27(int *esp);
 #define PIC0_ICW1		0x0020
 #define PIC0_OCW2		0x0020
 #define PIC0_IMR		0x0021
@@ -133,12 +131,12 @@ void enable_mouse(struct FIFO32 *fifo, int data0, struct MOUSE_DEC *mdec);
 int mouse_decode(struct MOUSE_DEC *mdec, unsigned char dat);
 
 /* memory.c */
-#define MEMMAN_FREES 4090 /* 大约是32KB*/
+#define MEMMAN_FREES		4090	/* ����Ŗ�32KB */
 #define MEMMAN_ADDR			0x003c0000
-struct FREEINFO { /* 可用信息 */
+struct FREEINFO {	/* ������� */
 	unsigned int addr, size;
 };
-struct MEMMAN { /* 内存管理 */
+struct MEMMAN {		/* �������Ǘ� */
 	int frees, maxfrees, lostsize, losts;
 	struct FREEINFO free[MEMMAN_FREES];
 };
@@ -177,7 +175,7 @@ void sheet_free(struct SHEET *sht);
 struct TIMER {
 	struct TIMER *next;
 	unsigned int timeout;
-	char flags, flags2; 
+	char flags, flags2;
 	struct FIFO32 *fifo;
 	int data;
 };
@@ -199,8 +197,8 @@ void timer_cancelall(struct FIFO32 *fifo);
 /* mtask.c */
 #define MAX_TASKS 1000	/*最大任务数量*/
 #define TASK_GDT0 3			/*定义从GDT的几号开始分配给TSS */
-#define MAX_TASKS_LV    100
-#define MAX_TASKLEVELS  10
+#define MAX_TASKS_LV	100
+#define MAX_TASKLEVELS	10
 struct TSS32 {
 	int backlink, esp0, ss0, esp1, ss1, esp2, ss2, cr3;
 	int eip, eflags, eax, ecx, edx, ebx, esp, ebp, esi, edi;
@@ -227,6 +225,7 @@ struct TASKCTL {
 	struct TASK tasks0[MAX_TASKS];
 };
 extern struct TIMER *task_timer;
+struct TASK *task_now(void);
 struct TASK *task_init(struct MEMMAN *memman);
 struct TASK *task_alloc(void);
 void task_run(struct TASK *task, int level, int priority);
@@ -246,20 +245,21 @@ struct CONSOLE {
 	int cur_x, cur_y, cur_c;
 	struct TIMER *timer;
 };
-void console_task(struct SHEET *sheet, unsigned int memtotal);
+void console_task(struct SHEET *sheet, int memtotal);
 void cons_putchar(struct CONSOLE *cons, int chr, char move);
 void cons_newline(struct CONSOLE *cons);
 void cons_putstr0(struct CONSOLE *cons, char *s);
 void cons_putstr1(struct CONSOLE *cons, char *s, int l);
-void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, unsigned int memtotal);
-void cmd_mem(struct CONSOLE *cons, unsigned int memtotal);
+void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal);
+void cmd_mem(struct CONSOLE *cons, int memtotal);
 void cmd_cls(struct CONSOLE *cons);
 void cmd_dir(struct CONSOLE *cons);
 void cmd_type(struct CONSOLE *cons, int *fat, char *cmdline);
 int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline);
 int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int eax);
-int *inthandler0c(int *esp);
 int *inthandler0d(int *esp);
+int *inthandler0c(int *esp);
+void hrb_api_linewin(struct SHEET *sht, int x0, int y0, int x1, int y1, int col);
 
 /* file.c */
 struct FILEINFO {
@@ -271,3 +271,4 @@ struct FILEINFO {
 void file_readfat(int *fat, unsigned char *img);
 void file_loadfile(int clustno, int size, char *buf, int *fat, char *img);
 struct FILEINFO *file_search(char *name, struct FILEINFO *finfo, int max);
+
diff --git a/25_day/console.c b/25_day/console.c
index 2cfb82a..7df9bea 100644
--- a/25_day/console.c
+++ b/25_day/console.c
@@ -4,48 +4,48 @@
 #include <stdio.h>
 #include <string.h>
 
-void console_task(struct SHEET *sheet, unsigned int memtotal)
+void console_task(struct SHEET *sheet, int memtotal)
 {
-	struct TIMER *timer;
 	struct TASK *task = task_now();
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
 	int i, *fat = (int *) memman_alloc_4k(memman, 4 * 2880);
 	struct CONSOLE cons;
 	char cmdline[30];
 	cons.sht = sheet;
-	cons.cur_x = 8;
+	cons.cur_x =  8;
 	cons.cur_y = 28;
 	cons.cur_c = -1;
 	task->cons = &cons;
 
-	timer = timer_alloc();
-	timer_init(timer, &task->fifo, 1);
-	timer_settime(timer, 50);
-	file_readfat(fat, (unsigned char *) (ADR_DISKIMG + 0x000200)); 
+	cons.timer = timer_alloc();
+	timer_init(cons.timer, &task->fifo, 1);
+	timer_settime(cons.timer, 50);
+	file_readfat(fat, (unsigned char *) (ADR_DISKIMG + 0x000200));
 
 	/*显示提示符*/
 	cons_putchar(&cons, '>', 1);
+
 	for (;;) {
 		io_cli();
 		if (fifo32_status(&task->fifo) == 0) {
-			task_sleep(task);  
+			task_sleep(task);
 			io_sti();
 		} else {
 			i = fifo32_get(&task->fifo);
 			io_sti();
 			if (i <= 1) { /*光标用定时器*/
 				if (i != 0) {
-					timer_init(timer, &task->fifo, 0); /*下次置0 */
+					timer_init(cons.timer, &task->fifo, 0); /*下次置0 */
 					if (cons.cur_c >= 0) {
 						cons.cur_c = COL8_FFFFFF;
 					}
 				} else {
-					timer_init(timer, &task->fifo, 1); /*下次置1 */
+					timer_init(cons.timer, &task->fifo, 1); /*下次置1 */
 					if (cons.cur_c >= 0) {
 						cons.cur_c = COL8_000000;
 					}
 				}
-				timer_settime(timer, 50);
+				timer_settime(cons.timer, 50);
 			}
 			if (i == 2) { /*光标ON */
 				cons.cur_c = COL8_FFFFFF;
@@ -163,7 +163,7 @@ void cons_putstr1(struct CONSOLE *cons, char *s, int l)
 	return;
 }
 
-void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, unsigned int memtotal)
+void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal)
 {
 	if (strcmp(cmdline, "mem") == 0) {
 		cmd_mem(cons, memtotal);
@@ -182,11 +182,11 @@ void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, unsigned int mem
 	return;
 }
 
-void cmd_mem(struct CONSOLE *cons, unsigned int memtotal)
+void cmd_mem(struct CONSOLE *cons, int memtotal)
 {
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
 	char s[60];
-	sprintf(s, "total %dMB\nfree %dKB\n\n", memtotal / (1024 * 1024), memman_total(memman) / 1024);
+	sprintf(s, "total   %dMB\nfree %dKB\n\n", memtotal / (1024 * 1024), memman_total(memman) / 1024);
 	cons_putstr0(cons, s);
 	return;
 }
@@ -216,7 +216,7 @@ void cmd_dir(struct CONSOLE *cons)
 		}
 		if (finfo[i].name[0] != 0xe5) {
 			if ((finfo[i].type & 0x18) == 0) {
-				sprintf(s, "filename.ext %7d\n", finfo[i].size);
+				sprintf(s, "filename.ext   %7d\n", finfo[i].size);
 				for (j = 0; j < 8; j++) {
 					s[j] = finfo[i].name[j];
 				}
@@ -241,7 +241,7 @@ void cmd_type(struct CONSOLE *cons, int *fat, char *cmdline)
 		p = (char *) memman_alloc_4k(memman, finfo->size);
 		file_loadfile(finfo->clustno, finfo->size, p, fat, (char *) (ADR_DISKIMG + 0x003e00));
 		cons_putstr1(cons, p, finfo->size);
-		memman_free_4k(memman, (int) p, finfo->size); 
+		memman_free_4k(memman, (int) p, finfo->size);
 	} else {
 		/*没有找到文件的情况*/
 		cons_putstr0(cons, "File not found.\n");
@@ -272,9 +272,9 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 
 	/*寻找文件 */
 	finfo = file_search(name, (struct FILEINFO *) (ADR_DISKIMG + 0x002600), 224);
-	if (finfo == 0 && name[i -1]!= '.') {
+	if (finfo == 0 && name[i - 1] != '.') {
 		/*由于找不到文件，故在文件名后面加上“.hrb”后重新寻找*/
-		name[i ] = '.';
+		name[i    ] = '.';
 		name[i + 1] = 'H';
 		name[i + 2] = 'R';
 		name[i + 3] = 'B';
@@ -294,7 +294,7 @@ int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 			q = (char *) memman_alloc_4k(memman, segsiz);
 			task->ds_base = (int) q;
 			set_segmdesc(gdt + task->sel / 8 + 1000, finfo->size - 1, (int) p, AR_CODE32_ER + 0x60);
-			set_segmdesc(gdt + task->sel / 8 + 2000, segsiz - 1, (int) q, AR_DATA32_RW + 0x60);
+			set_segmdesc(gdt + task->sel / 8 + 2000, segsiz - 1,      (int) q, AR_DATA32_RW + 0x60);
 			for (i = 0; i < datsiz; i++) {
 				q[esp + i] = p[dathrb + i];
 			}
@@ -329,8 +329,8 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 	struct SHEET *sht;
 	int *reg = &eax + 1; /* eax后面的地址*/
 	/*强行改写通过PUSHAD保存的值*/
-	/* reg[0] : EDI, reg[1] : ESI, reg[2] : EBP, reg[3] : ESP */
-	/* reg[4] : EBX, reg[5] : EDX, reg[6] : ECX, reg[7] : EAX */
+		/* reg[0] : EDI,   reg[1] : ESI,   reg[2] : EBP,   reg[3] : ESP */
+		/* reg[4] : EBX,   reg[5] : EDX,   reg[6] : ECX,   reg[7] : EAX */
 	int i;
 
 	if (edx == 1) {
@@ -349,7 +349,7 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		make_window8((char *) ebx + ds_base, esi, edi, (char *) ecx + ds_base, 0);
 		sheet_slide(sht, (shtctl->xsize - esi) / 2, (shtctl->ysize - edi) / 2);
 		sheet_updown(sht, shtctl->top); /*将窗口图层高度指定为当前鼠标所在图层的高度，鼠标移到上层*/
-		reg[7] = (int) sht; 
+		reg[7] = (int) sht;
 	} else if (edx == 6) {
 		sht = (struct SHEET *) (ebx & 0xfffffffe);
 		putfonts8_asc(sht->buf, sht->bxsize, esi, edi, eax, (char *) ebp + ds_base);
@@ -419,7 +419,7 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 				return 0;
 			}
 		}
-	} else if (edx == 16) { 
+	} else if (edx == 16) {
 		reg[7] = (int) timer_alloc();
 		((struct TIMER *) reg[7])->flags2 = 1; /*允许自动取消*/
 	} else if (edx == 17) {
@@ -428,7 +428,7 @@ int *hrb_api(int edi, int esi, int ebp, int esp, int ebx, int edx, int ecx, int
 		timer_settime((struct TIMER *) ebx, eax);
 	} else if (edx == 19) {
 		timer_free((struct TIMER *) ebx);
-	}  else if (edx == 20) {
+	} else if (edx == 20) {
 		if (eax == 0) {
 			i = io_in8(0x61);
 			io_out8(0x61, i & 0x0d);
diff --git a/25_day/dsctbl.c b/25_day/dsctbl.c
index 05bfe89..9ff2c67 100644
--- a/25_day/dsctbl.c
+++ b/25_day/dsctbl.c
@@ -27,9 +27,8 @@ void init_gdtidt(void)
 	set_gatedesc(idt + 0x0d, (int) asm_inthandler0d, 2 * 8, AR_INTGATE32);
 	set_gatedesc(idt + 0x20, (int) asm_inthandler20, 2 * 8, AR_INTGATE32);
 	set_gatedesc(idt + 0x21, (int) asm_inthandler21, 2 * 8, AR_INTGATE32);
-	set_gatedesc(idt + 0x27, (int) asm_inthandler27, 2 * 8, AR_INTGATE32);
 	set_gatedesc(idt + 0x2c, (int) asm_inthandler2c, 2 * 8, AR_INTGATE32);
-	set_gatedesc(idt + 0x40, (int) asm_hrb_api, 2 * 8, AR_INTGATE32 + 0x60); 
+	set_gatedesc(idt + 0x40, (int) asm_hrb_api,      2 * 8, AR_INTGATE32 + 0x60);
 
 	return;
 }
diff --git a/25_day/file.c b/25_day/file.c
index c289350..bf9d063 100644
--- a/25_day/file.c
+++ b/25_day/file.c
@@ -7,7 +7,7 @@ void file_readfat(int *fat, unsigned char *img)
 {
 	int i, j = 0;
 	for (i = 0; i < 2880; i += 2) {
-		fat[i + 0] = (img[j + 0] | img[j + 1] << 8) & 0xfff;
+		fat[i + 0] = (img[j + 0]      | img[j + 1] << 8) & 0xfff;
 		fat[i + 1] = (img[j + 1] >> 4 | img[j + 2] << 4) & 0xfff;
 		j += 3;
 	}
@@ -51,12 +51,12 @@ struct FILEINFO *file_search(char *name, struct FILEINFO *finfo, int max)
 			if ('a' <= s[j] && s[j] <= 'z') {
 				/*将小写字母转换为大写字母*/
 				s[j] -= 0x20;
-			}
+			} 
 			j++;
 		}
 	}
 	for (i = 0; i < max; ) {
-		if (finfo[i].name[0] == 0x00) {
+		if (finfo->name[0] == 0x00) {
 			break;
 		}
 		if ((finfo[i].type & 0x18) == 0) {
@@ -67,8 +67,8 @@ struct FILEINFO *file_search(char *name, struct FILEINFO *finfo, int max)
 			}
 			return finfo + i; /*找到文件*/
 		}
-		next:
-			i++;
+next:
+		i++;
 	}
 	return 0; /*没有找到*/
 }
diff --git a/25_day/int.c b/25_day/int.c
index c717372..54c4c7a 100644
--- a/25_day/int.c
+++ b/25_day/int.c
@@ -24,14 +24,3 @@ void init_pic(void)
 
 	return;
 }
-
-void inthandler27(int *esp)
-/* PIC0中断的不完整策略 */
-/* 这个中断在Athlon64X2上通过芯片组提供的便利，只需执行一次 */
-/* 这个中断只是接收，不执行任何操作 */
-/* 为什么不处理？
-	→  因为这个中断可能是电气噪声引发的、只是处理一些重要的情况。*/
-{
-	io_out8(PIC0_OCW2, 0x67); /* 通知PIC的IRQ-07（参考7-1） */
-	return;
-}
diff --git a/25_day/mtask.c b/25_day/mtask.c
index b518641..b91869d 100644
--- a/25_day/mtask.c
+++ b/25_day/mtask.c
@@ -163,6 +163,24 @@ void task_run(struct TASK *task, int level, int priority)
 	return;
 }
 
+void task_sleep(struct TASK *task)
+{
+	struct TASK *now_task;
+	if (task->flags == 2) {
+		/*如果处于活动状态*/
+		now_task = task_now();
+		task_remove(task); /*执行此语句的话flags将变为1 */
+		if (task == now_task) {
+			/*如果是让自己休眠，则需要进行任务切换*/
+			task_switchsub();
+			now_task = task_now(); /*在设定后获取当前任务的值*/
+			farjmp(0, now_task->sel);
+		}
+	}
+	return;
+}
+
+
 void task_switch(void)
 {
 	struct TASKLEVEL *tl = &taskctl->level[taskctl->now_lv];
@@ -182,20 +200,3 @@ void task_switch(void)
 	}
 	return;
 }
-
-void task_sleep(struct TASK *task)
-{
-	struct TASK *now_task;
-	if (task->flags == 2) {
-		/*如果处于活动状态*/
-		now_task = task_now();
-		task_remove(task); /*执行此语句的话flags将变为1 */
-		if (task == now_task) {
-			/*如果是让自己休眠，则需要进行任务切换*/
-			task_switchsub();
-			now_task = task_now(); /*在设定后获取当前任务的值*/
-			farjmp(0, now_task->sel);
-		}
-	}
-	return;
-}
diff --git a/25_day/naskfunc.nas b/25_day/naskfunc.nas
index d32a472..a45775d 100644
--- a/25_day/naskfunc.nas
+++ b/25_day/naskfunc.nas
@@ -14,14 +14,14 @@
 		GLOBAL	_load_cr0, _store_cr0
 		GLOBAL	_load_tr
 		GLOBAL	_asm_inthandler20, _asm_inthandler21
-		GLOBAL	_asm_inthandler27, _asm_inthandler2c
-		GLOBAL	_asm_inthandler0c, _asm_inthandler0d
-		GLOBAL	_asm_end_app, _memtest_sub
+		GLOBAL	_asm_inthandler2c, _asm_inthandler0c
+		GLOBAL	_asm_inthandler0d, _asm_end_app
+		GLOBAL	_memtest_sub
 		GLOBAL	_farjmp, _farcall
 		GLOBAL	_asm_hrb_api, _start_app
 		EXTERN	_inthandler20, _inthandler21
-		EXTERN	_inthandler27, _inthandler2c
-		EXTERN	_inthandler0c, _inthandler0d
+		EXTERN	_inthandler2c, _inthandler0d
+		EXTERN	_inthandler0c
 		EXTERN	_hrb_api
 
 [SECTION .text]
@@ -79,14 +79,14 @@ _io_out32:	; void io_out32(int port, int data);
 		RET
 
 _io_load_eflags:	; int io_load_eflags(void);
-		PUSHFD		; PUSH EFLAGS 
+		PUSHFD		; PUSH EFLAGS
 		POP		EAX
 		RET
 
 _io_store_eflags:	; void io_store_eflags(int eflags);
 		MOV		EAX,[ESP+4]
 		PUSH	EAX
-		POPFD		; POP EFLAGS 
+		POPFD		; POP EFLAGS
 		RET
 
 _load_gdtr:		; void load_gdtr(int limit, int addr);
@@ -146,22 +146,6 @@ _asm_inthandler21:
 		POP		ES
 		IRETD
 
-_asm_inthandler27:
-		PUSH	ES
-		PUSH	DS
-		PUSHAD
-		MOV		EAX,ESP
-		PUSH	EAX
-		MOV		AX,SS
-		MOV		DS,AX
-		MOV		ES,AX
-		CALL	_inthandler27
-		POP		EAX
-		POPAD
-		POP		DS
-		POP		ES
-		IRETD
-
 _asm_inthandler2c:
 		PUSH	ES
 		PUSH	DS
@@ -278,8 +262,8 @@ _asm_hrb_api:
 		IRETD
 _asm_end_app:
 ; EAX为tss.esp0的地址
-		MOV			ESP,[EAX]
-		MOV			DWORD [EAX+4],0
+		MOV		ESP,[EAX]
+		MOV		DWORD [EAX+4],0
 		POPAD
 		RET			; 返回cmd_app