在C++中,结构和类基本相同。但也有一些细微的差别。这些差异如下所示。
默认情况下,类成员是私有的,但结构体的成员是公共的。让我们看看这两个代码,看看有什么不同。
#include <iostream> using namespace std; class my_class { int x = 10; }; int main() { my_class my_ob; cout << my_ob.x; }
This program will not be compiled. It will generate compile time error for the private data member.
#include <iostream> using namespace std; struct my_struct { int x = 10; }; int main() { my_struct my_ob; cout << my_ob.x; }
10
When we derive a structure from a class or structure, the default access specifier of that base class is public, but when we deriving a class the default access specifier is private.
#include <iostream> using namespace std; class my_base_class { public: int x = 10; }; class my_derived_class : my_base_class { }; int main() { my_derived_class d; cout << d.x; }
This program will not be compiled. It will generate compile time error that the variable x of the base class is inaccessible
#include <iostream> using namespace std; class my_base_class { public: int x = 10; }; struct my_derived_struct : my_base_class { }; int main() { my_derived_struct d; cout << d.x; }
10
以上是C/C++ 结构体与类的区别的详细内容。更多信息请关注PHP中文网其他相关文章!