Member reference type ‘struct objc_class *‘ is a pointer; maybe you meant to use ‘->‘?
Definition of ‘struct objc_class‘ must be imported from module ‘ObjectiveC.runtime‘ before it is required
在类方法中( +(void)...... )不能使用self.
因为此时还没有创建出自己的对象
时间: 2024-11-10 01:09:21