学习笔记(47):C#急速入门-枚举类型和int类型相互转换

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枚举类型和int类型相互转换

1. 枚举类型和int类型是相互兼容的，但是必须显式强转类型

enum QQstate
{
        Online = 1,
        Offline,
        Hidden = 5,
        Leave,
        Busy
 }
int state = (int)QQstate.Online;      //state的值为1

2. 根据枚举的值进行转换，如果值不存在，就不转换，也不报错

enum QQstate
{
        Online = 1,
        Offline,
        Hidden = 5,
        Leave,
        Busy
 }
QQstate qq = (QQstate)5;        //qq的值为Hidden
QQstate qq = (QQstate)10;        //qq的值为10