题解 | #按照格式输入并交换输出#
按照格式输入并交换输出
http://www.nowcoder.com/practice/95eb723a3e854376a7eb6d116cc7d875
#include<stdio.h>
int main(){
int a,b;
scanf("a=%d,b=%d",&a,&b);//如果a=2,b=1
a=a+b; //a=a+b=3
b=a-b; //b=a-b=3-1=2
a=a-b; //a=a-b=3-2=1
printf("a=%d,b=%d",a,b);
return 0;
}