我疯了吗？

Question

我一直在寻找10分钟,为什么第一行得到警告,而最后3行没有警告:

[self performSelector:@selector(displayWebServices) withObject:NULL atferDelay:0.5];

[self performSelector:@selector(displayWebServices) withObject:NULL afterDelay:0.5];

[self performSelector:@selector(displayWebServices) withObject:NULL afterDelay:0.5];

[self performSelector:@selector(displayWebServices) withObject:NULL afterDelay:0.5];

警告是RootViewController(自我实例)可能不响应performSelectot:withObject:afterDelay.

我想知道这行中是否有一个隐藏的角色......

您是否已经在使用XCode时面临同样的问题？

此致,Apple92

Answer 1

将atferDelay更改为afterDelay.