| 
 
| #include <stdio.h> 
 int main(int argc, const char * argv[]) {
 char direction;
 int flag = 1;
 printf("请控制小人移动:w.上 s.下 a.左 d.右 q.退出\n");
 while (flag) {
 scanf("%c",&direction);
 switch (direction) {
 case 'w':
 case 'W':
 printf("上\n");
 break;
 case 's':
 case 'S':
 printf("下\n");
 break;
 case 'a':
 case 'A':
 printf("左\n");
 break;
 case 'd':
 case 'D':
 printf("右\n");
 break;
 case 'q':
 case 'Q':
 printf("正在退出...\n");
 printf("已经退出。\n");
 printf("see you...\n");
 flag = 0;
 break;
 default:
 break;
 }
 }
 
 return 0;
 }
 
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