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給定兩個變數的值,將兩個 值的內容交換

define _CRT_SECURE_NO_WARNINGS

include<stdio.h>

include<stdlib.h>

int main(){
int a=1;
int b=2;
int c;
c = a;
a = b;
b = c;
printf(“a=%d\n”, a);
printf(“b=%d\n”, b);
system(“pause”);
return 0;