常用模板類的情況

#include<iostream>

using namespace std;

//模板函式，一個模板引數
template<typename T>
T fun1(T a,T b){
    if(a>b)
    {
        return a;
    }
    else{
        return b;
    }
}
//模板函式，兩個模板引數
template<typename T1,typename T2>
void fun2(T1 a,T2 &b)
{
    b=a+b;
}
//模板函式，使用選擇排序
template<typename T>
void fun4(T arr[],int n){
	for(int i = 1;i < n;i++){
		int temp = arr[i];
		int j = i - 1;
		while(temp < arr[j]){
			arr[j+1] = arr[j];
			j--;
			if(j == -1){
				break;
			}
		}
		arr[j+1] = temp;
	}

}

//模板類，兩個模板引數
template<typename T1,typename T2>
class myClass{
private:
    T1 a;
    T2 b;
public:
    myClass(T1 aa){
        a=aa;
    }
    T2 fun3(){
        return a;
    }
};
int main(){
    int a=7,b=8;
    cout <<"result of fun1:"<<endl;
    cout << fun1(a,b)<<endl;
    cout<<"result of fun2:"<<endl;
    fun2(a,b);
    cout<<b<<endl;
    cout<<"template class is:"<<endl;
    myClass<int ,int > ss(a);
    cout <<ss.fun3()<<endl;

    cout<<"模板函式選擇排序"<<endl;
    int arr[10]={6,3,4,2,7,11,3,55,42,17};
    fun4(arr,10);
    for (int i=0;i<10;i++){
        cout<<arr[i]<<" ";
    }
    cout<<endl;
    return 0;
}