c++函数模板

#include <iostream>
using namespace std;

template <typename AnyType>
void Swap(AnyType &a, AnyType &b)
{
    AnyType tmp;
    tmp = a;
    a = b;
    b = tmp;
}

int main(int argc, char **argv)
{
    int a = 1;
    int b = 2;
    cout << "a = " << a <<", b = " << b <<endl;
    Swap(a, b);
    cout << "a = " << a <<", b = " << b <<endl;
    return 0;
}

template <typename AnyType>

表示要建立一个模板，类型为AnyType，关键字为template ,typename (class)