#include<iostream>
class TestConstructor
{
public:
    TestConstructor()
    {
        std::cout<<"TestConstructor()"<<std::endl;
    }
    ~TestConstructor()
    {
        std::cout<<"~TestConstructor()"<<std::endl;
    }
    TestConstructor(const TestConstructor& testObj)
    {
        std::cout<<"TestConstructor(const TestConstructor&)"<<std::endl;
    }
    TestConstructor& operator = (const TestConstructor& testObj)
    {
        std::cout<<"TestConstructor& operator = (const TestConstructor& testObj)"<<std::endl;
        return *this;
    }
};
TestConstructor testFunc()
{
    TestConstructor testInFunc;  //3、調(diào)用TestConstructor() 生成對(duì)象testInFunc
    return testInFunc;           //4、調(diào)用TestConstructor(const TestConstructor&) 生成臨時(shí)對(duì)象
                                 //5、調(diào)用析構(gòu)函數(shù)，析構(gòu)對(duì)象testInFunc
}
int main()
{
    TestConstructor test;  //1、調(diào)用TestConstructor() 生成對(duì)象test
    test = testFunc();     //2、調(diào)用testFunc()    //6、調(diào)用等號(hào)把臨時(shí)對(duì)象復(fù)制給對(duì)象test  //7、調(diào)用析構(gòu)函數(shù)，析構(gòu)臨時(shí)對(duì)象
    return 0;              //8、調(diào)用析構(gòu)函數(shù)，析構(gòu)對(duì)象test
}

看輸出：

有注釋，有輸出。執(zhí)行細(xì)節(jié)，一目了然了吧