摘要:
NSString *string1 = @"什么情况"; UILabel *label1 = [[UILabel alloc]initWithFrame:CGRectMake(100, 100, 200, 20)]; NSMutableAttributedString *attribute ... 阅读全文
摘要:
- (BOOL)isKindOfClass:(Class)aClass;- (BOOL)isMemberOfClass:(Class)aClass;特点:1、isKindOfClass 判断是否是这个类(包括其父类及根类)或者这个类的子类的实例2、isMemberOfClass 判断是否是这个类的... 阅读全文