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在iOS MRC下,把NSInteger转化为id,可以直接强转,(id)UIDeviceOrientationLandscapeLeft,然后就可以performselector withobject, 现在我在ARC下同样的代码就会报disallowed的错误,那要怎么转化呢?前提我不想用mrc,那些关掉ARC的方式就算了,也不想用NSInvocation,麻烦,求助!
人生最曼妙的风景,竟是内心的淡定与从容!
NSInteger a = 1; id b = @(a); b为NSNumber类型
友情提示:强制转换是有问题的
NSInteger a = 1;
id b = @(a);
b为NSNumber类型
友情提示:强制转换是有问题的