c语言指针指针
0
[待解决问题]
#include <stdio.h>
int main(){
int a = 100, b = 999, temp;
int *pa = &a, *pb = &b;
printf("a=%d, b=%d\n", a, b);
/*****开始交换*****/
temp = pa;
pa = pb;
pb = temp;
/*****结束交换*****/
printf("a=%d, b=%d\n", a, b);
return 0;
}
#include <stdio.h>
int main(){
int a = 100, b = 999, temp;
int *pa = &a, *pb = &b;
printf("a=%d, b=%d\n", a, b);
/*****开始交换*****/
temp = *pa;
*pa = *pb;
*pb = temp;
/*****结束交换*****/
printf("a=%d, b=%d\n", a, b);
return 0;
}
能不能给我用画图解释一下上面两个交互时有*和没*的区别
所有回答(1)
0
temp = pa; 这里加是取pa存储区内存放的值，也就是&a
temp = pa; 你确定编译得过吗？int 指针赋值给int整型，给的是pa的地址
