@CrazyHenry
        
        2018-02-04T12:14:28.000000Z
        字数 395
        阅读 1280
    ccccC++Primer
- Author:李英民 | Henry
 - E-mail: li
 _yingmin@outlookdotcom- Home: https://liyingmin.wixsite.com/henry
 
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转载请保留上述引用内容,谢谢配合!
string &func(){string s = "Hello";return s;}string s1 = func();//error,无法访问到局部对象s!
const int& func(int);int main(){int s1 = func(2);cout<<s1<<endl;//能正确输出90return 0;}const int& func(int a){int b = 90;return b;}//有一种解释是栈区的局部变量的作用域在函数调用处仍有效
