c++——this指针

类的this指针就是值类的对象自己

实验1：若类成员函数的形参和类的属性，名字相同，通过this指针来解决。

 1 #include <iostream>
 2 using namespace std;
 3 class Test
 4 {
 5 public:
 6     Test(int a, int b) //---> Test(Test *this, int a, int b)
 7     {
 8         this->a = a;
 9         this-> b = b;    
10     }
11     void printT()
12     {
13         cout<<"a: " <<a <<endl;
14         cout<< "b: " << this->b <<endl;
15     }
16 protected:
17 private:
18     int a;
19     int b;
20 };
21 
22 void main()
23 {
24     
25     Test t1(1, 2);
26     t1.printT();// ===> printT(&t1)
27     cout<<"hello..."<<endl;
28     system("pause");
29     return ;
30 }