#include<iostream.h>
void swap(float &m, float &n);
int main(){
float a, b;
cin >> a >> b;
//pa = &a; pb = &b;
swap(a, b);
cout << a << endl << b << endl;
}
void swap(float &m, float &n){
float t;
t = m;
m = n;
n = t;
}
引用交换两个数
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转载自blog.csdn.net/qq_41895253/article/details/82834805
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