出error 不知道怎么改。。。。

[Rongde0522]

#include<stdio.h>

void mySwap(int x, int y)
{
int temp = 0;

temp = x; ///// 这地方似乎要加buffer ；求怎么整
y = y;
y = temp;
}

int main(void)
{
int ival1 = 3;
int ival2 = 7;
printf("ival1 = %d, ival2 = %d\n", ival1, ival2);
mySwap(ival1, ival2);
printf("ival1 = %d, ival2 = %d\n", ival1, ival2);

return 0;
}

[newtee]

#include<stdio.h>

void mySwap(int *x, int *y)
{
int temp;

temp = *x;
*x = *y;
*y = temp;
}

int main(void)
{
int ival1 = 3;
int ival2 = 7;
printf("ival1 = %d, ival2 = %d\n", ival1, ival2);
mySwap(&ival1, &ival2);
printf("ival1 = %d, ival2 = %d\n", ival1, ival2);

return 0;
}

[byWK]

1. mySwap 的入参要用指针的或者引用的 2. y = y;这是笔误吧？

[china_ssl]

引用 1 楼 zhuankeshumo 的回复:

C/C++ code?123456789101112131415161718192021#include<stdio.h> void mySwap(int *x, int *y){int temp; temp = *x;*x = *y;*y = temp;} int main(void){int ival1 = 3;int ival2 = 7;printf("ival1 ……

正解 楼主可以结贴了

[delong45]

传址不要传值

[jiemo1123]

形参值被改变，但是实参是不会被改变的