传值&传引用&传指针
主程序
#include <iostream>
using namespace std ;
void Swap(int x, int y) ;
int main(void){
int a = 1 ;
int b = 2 ;
cout << "a = " << a << ", " << "b = " << b << endl ;
Swap(a, b) ;
cout << "a = " << a << ", " << "b = " << b << endl ;
return 0 ;
}值传递
引用传递
指针传递
指针传递1
指针传递2
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