自定义分类文件中】
#import "NSDate+Utilities.h"
文件中中有个方法是@property (readonly) NSInteger weekday; 调用此属性崩溃，我必须把属性名改成@property (readonly) NSInteger nweekday; 才不会崩溃，在iOS18以前没有出现这个问题，今天iOS18上会出现此问题，找不出原因，麻烦给解释一下。
songjinfeng
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