指针

来源:互联网 发布:数组结束标志 编辑:程序博客网 时间:2024/05/22 03:20
#define _CRT_SECURE_NO_WARNINGS#include<stdio.h>#include<stdlib.h>void main(){char a, *pa;a = 10;pa = &a;pa = "123";printf("%d",a);system("pause");}

答案却是 10



#include<stdio.h>#include<stdlib.h>void main(){char a, *pa;a = 10;pa = &a;*pa = 20;printf("%d\n",a);system("pause");}

答案是  20


#include<stdio.h>#include<stdlib.h>void main(){char a, *pa;a = 10;pa = &a;pa = 20;printf("%d\n",a);system("pause");}


答案却是10



0 0
原创粉丝点击