#include <iostream> using namespace std;
class MyClass { public: MyClass(){ mchar = 'A';}; static char *str ; static void print( void ); friend void printprivate( MyClass &myclass ); private: char mchar; };
char * MyClass:: str = "This is a static var";
void MyClass::print( void ) { cout << str << endl; }
void printprivate( MyClass &myclass ) { cout << myclass.mchar <<endl; }
void main() { MyClass::print(); MyClass myclass; printprivate( myclass );
}
char * MyClass:: str = "This is a static var";在初始化 str的时候,因改讲类型写完整 例如: 你声明的是: static char *str; 那么你在初始化的时候就该这样初始化: char * MyClass::str = “this is a static var”; friend :有元函数,不是类的一部分,但是却能访问类中的私有成员. 
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