1 æ ¹æ®æ°å¦å®ä¹ï¼ä¹¦åå¤æç´ æ°çå½æ°ã
2 对æ´æ°ä»2å¼å§éåï¼å¹¶éä¸å¤ææ¯å¦ä¸ºç´ æ°
3 å¦ææ¯ç´ æ°ï¼åä¿åå¨æ°ç»ä¸ï¼å¦å继ç»ã
4 å½ç´ æ°è¾¾å°20个åï¼éåºéåç¨åºã
5 è¾åº20ä¸ªç´ æ°ã
代ç ï¼
#include <stdio.h>