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<>->
->用于指针
->用于指向结构体的指针
->用于指向结构体的指针，表示结构体内的元素
#include<stdio.h> struct role // 定义一个结构体 { char name[8]; // 姓名 int level; //
等级 int HP; // 血量 int MP; // 蓝量 int gold; // 金币 }; void main() { struct role *w;
// 定义一个结构体指针 char str[]="kuangzhan"; w->name = str; // 对结构体中的成员变量name进行赋值
w->level = 46; // 对结构体中的成员变量level进行赋值 w->HP = 3100; // 对结构体中的成员变量HP进行赋值 w->MP =
3100; // 对结构体中的成员变量MP进行赋值 w->gold = 475233; // 对结构体中的成员变量gold进行赋值 }
<>::
调用变量
作用域::变量
如果a的作用域为全局作用域，调用a时用
::a
如果a的作用域为类ww时，调用a时用
class ww { public: int a(); } int ww::a()//表示test是属于A的 { return 0; }
