C++ 01 函数模板

#include <iostream>

#include <string>

#include <fstream>

using namespace std;

template <class T>

void mySwap(T& a, T& b)

{

T temp = a;

a = b;

b = temp;

}

int main()

{

int a = 10;

int b = 20;

mySwap(a, b);

string c = "hello";

string d = "world";

mySwap(c, d);

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

cout << c << " " << d << endl;

system("pause");

}