Question

求c++高手写程序 键盘输入两个整型变量A、B的值，利用中间变量C交换A、B的值并输出

Answer 1

int main()
{
int a,b,c;

scanf("%d%d",&a,&b);

c=a;a=b;b=c;

printf("a=%d,b=%d\n",a,b);

return 0;

}

追问

怎么有3个错哦

？

追答

#include
在开头加上上面一行头文件

Answer 2

#include <iostream>
using namespace std;
void main(){
int A,B,C;

cout << "请输入两个整数A、B：";

cin >> A >> B;

C = A;

A = B;

B = C;

cout << " A = " << A << "，B = " << B << endl;

}

Answer 3

#include<iostream>
using namespace std;
int main()
{
int a,b,c;

cin >> a >>b;

c = a;

a = b;

b = c;

cout << a << " " << b << endl;

return 0;

}

Answer 4

void change(int &A,int &B)
{
int temp;
temp=A;
A=B;
B=temp;
cout<<"A="<<A<<endl;
cout<<"B="<<B<<endl;
}