C++随笔：为什么没有调用复制运算符？

 1 #include <iostream>
 2 using std::cout;
 3 using std::endl;
 4 using std::string;
 5 
 6 class Test
 7 {
 8 public:
 9     Test()
10     {   
11         cout << "The default constructor is called!" << endl;
12     }   
13 
14     Test(const Test &rhs)
15     :strTest(rhs.strTest)
16     {   
17         cout << "Test copying function is called!" << endl;
18     }   
19 
20     Test & operator=(const Test &rhs)
21     {
22         strTest = rhs.strTest;
23         cout << "Test copy assignment function is called!" << endl;
24         return *this;
25     }
26 
27 private:
28     string strTest;
29 };
30 
31 int main()
32 {
33     Test myTestA;
34     Test myTestB = myTestA;
35 
36     return 0;
37 }

1 [tortoise@sea temp]$ ./test
2 The default constructor is called!
3 Test copying function is called!
4 [tortoise@sea temp]$