#include <iostream>

using namespace std;//template告訴C++編輯器要進行泛型編程 T在這里是一種類型template<typename T>//數據類型參數化void myswap(T &a,T &b){	T t = a;	a = b;	b = t;}void main(){	int a1 = 10;	int b1 = 20;	myswap(a1,b1);//這是最容易董的函數調用方式	cout<<"a1="<<a1<<endl;	cout<<"b1="<<b1<<endl;		myswap<int>(a1,b1);	cout<<"a1="<<a1<<endl;	cout<<"b1="<<b1<<endl;	system("pause");}