C++ Learn

C++

• class

class Student{
    public:
        int age=10;
}
int Student=0;

// 添加class符号修饰，避免int Student和class Student覆盖,参考：作用域
class Student stu;
stu.age=Student;

• extern keyword

//参考： extern keyword

[作用域]（https://docs.microsoft.com/en-us/cpp/cpp/scope-visual-cpp?view=msvc-160） extern keyword