diff --git a/26_day/bootpack.h b/26_day/bootpack.h
index 31a6385..5da0cb7 100644
--- a/26_day/bootpack.h
+++ b/26_day/bootpack.h
@@ -256,6 +256,7 @@ void cmd_cls(struct CONSOLE *cons);
 void cmd_dir(struct CONSOLE *cons);
 void cmd_type(struct CONSOLE *cons, int *fat, char *cmdline);
 void cmd_exit(struct CONSOLE *cons, int *fat);
+void cmd_start(struct CONSOLE *cons, char *cmdline, int memtotal);
 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 *inthandler0d(int *esp);
diff --git a/26_day/console.c b/26_day/console.c
index 2da67d9..f72e450 100644
--- a/26_day/console.c
+++ b/26_day/console.c
@@ -178,6 +178,8 @@ void cons_runcmd(char *cmdline, struct CONSOLE *cons, int *fat, int memtotal)
 		cmd_type(cons, fat, cmdline);
 	} else if (strcmp(cmdline, "exit") == 0) {
 		cmd_exit(cons, fat);
+	} else if (strncmp(cmdline, "start ", 6) == 0) {
+		cmd_start(cons, cmdline, memtotal);
 	} else if (cmdline[0] != 0) {
 		if (cmd_app(cons, fat, cmdline) == 0) {
 			/*不是命令，不是应用程序，也不是空行*/
@@ -271,6 +273,23 @@ void cmd_exit(struct CONSOLE *cons, int *fat)
 	}
 }
 
+void cmd_start(struct CONSOLE *cons, char *cmdline, int memtotal)
+{
+	struct SHTCTL *shtctl = (struct SHTCTL *) *((int *) 0x0fe4);
+	struct SHEET *sht = open_console(shtctl, memtotal);
+	struct FIFO32 *fifo = &sht->task->fifo;
+	int i;
+	sheet_slide(sht, 32, 4);
+	sheet_updown(sht, shtctl->top);
+	/*将命令行输入的字符串逐字复制到新的命令行窗口中*/
+	for (i = 6; cmdline[i] != 0; i++) {
+		fifo32_put(fifo, cmdline[i] + 256);
+	}
+	fifo32_put(fifo, 10 + 256);	 /*回车键*/
+	cons_newline(cons);
+	return;
+}
+
 int cmd_app(struct CONSOLE *cons, int *fat, char *cmdline)
 {
 	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;