1.模板函数(泛型)
由下面函数发现,两个函数业务逻辑一样,数据类型不一样
void myswap(int& a,int& b){
int tmp = 0;
tmp = a;
a = b;
b = tmp;
}
void myswap(char& a, char& b){
char tmp = 0;
tmp = a;
a = b;
b = tmp;
}
于是:
template <typename T>
void myswap(T& a, T& b){
T tmp = 0;
tmp = a;
a = b;
b = tmp;
}
void main(){
//根据实际类型,自动推导
int a = 10, b = 20;
myswap<int>(a,b);
cout << a << "," << b << endl;
char x = 'v', y = 'w';
myswap(x, y);
cout << x << "," << y << endl;
system("pause");
}
模板类
//模板类
template<class T>
class A{
public:
A(T a){
this->a = a;
}
protected:
T a;
};
//普通类继承模板类
class B : public A<int>{
public:
B(int a,int b) : A<int>(a){
this->b = b;
}
private:
int b;
};
//模板类继承模板类
template <class T>
class C : public A<T>{
public:
C(T c, T a) : A<T>(a){
this->c = c;
}
protected:
T c;
};
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