c++_模板（template）

一、模板简单应用（比较大小）

#include<iostream>
using namespace std;
template<typename Type>
Type maax(Type num_first,Type num_secend)
{
	Type maxNum = (num_first > num_secend)?num_first:num_secend;
	return maxNum;
}
int main()
{
	int bb=max(4,6);
	cout<<bb<<endl;
	cout<<maax(4,6)<<endl;
	cout<<maax(7.7,9.9)<<endl;
	return 0;
}

#include<iostream>
using namespace std;
template<typename T1, typename T2, typename T3>
T3 maxx(T1 num1, T2 num2)
{
	T3 num=(num1>num2)?num1:num2
	return num;
}
int main()
{
	 cout<<maxx(6, 7.7)<<endl;
	 return 0;
}

#include<iostream>
using namespace std;
template<typename T1, typename T2>
T2 maxx(T1 num1, T2 num2)
{
	T2 num=(num1>num2)?num1:num2;
	return num;
}
int main()
{
	 cout<<maxx(6, 7.7)<<endl;
	 return 0;
}

二、类中包含模板

#include<iostream>
using namespace std;
template<typename T1, typename T2>
class class_max
{
public:
	class_max(T1 x1,T2 X2 );
	void show();
private:
	T1 num1;
	T2 num2;
	
};
template<typename T1, typename T2>
class_max<T1, T2>::class_max(T1 x1,T2 x2) : num1(x1), num2(x2)
{

}
template<typename T1, typename T2>
void class_max<T1, T2>::show()
{
	T1 tempNum;
	tempNum=(num1>num2)?num1:num2;
	cout<<"max num is:"<<tempNum<<endl;
}
int main()
{
	class_max<int,int> max1(6, 8);
	max1.show();
	class_max<float, float> max2(6.7,8.8);
	max2.show();
	class_max<float, int> max3(9.9, 5);
	max3.show();
	return 0;
}