(C/C++学习笔记)泛型编程基础

#include "iostream"using namespace std;void  swap(int &a, int &b){    int c ;    c = a;    a = b;    b = c;}void  swap(float &a, float &b){    float c ;    c = a;    a = b;    b = c;}void main11(){    int a = 1, b = 2;    swap(a, b);    float a1 = 1, b1 = 2;    swap(a1, b1);    system("pause");}//template关键字告诉c++编译器，现在开始泛型编程//typename 告诉c++编译器，T为类型（T为类型，可以参数化，int float），你不要乱报错//类型参数化template<typename T>void swap2(T &a, T &b){    T c;    c = a;    a = b;    b = c;}void  main(){    //泛型编程的调用方式有两种    //自动类型推导    int x =1, y =2;    swap2(x, y);    printf("x:%d y:%d \n", x, y);    float x1= 1.0, y1 = 2.0;    //具体类型调用    swap2<float>(x1, y1);    printf("x1:%f y1:%f \n", x1, y1);    system("pause");}