1.添加删划线方法遇到的问题
-(void)lastLabelDeal:(NSString *)str1 string:(NSString *)str2 label:(UILabel *)label{
NSMutableAttributedString
*str = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@ %@",str1,str2]];
[str addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlineStyleSingle|NSUnderlinePatternSolid) range:NSMakeRange(2, str1.length - 2)];
[str
addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(str1.length + 2,str2.length)];
／／以下3行代码是给label部分内容加删划线（这在iOS10.3之前一直这么用，没啥问题，可是10.3之后这样子实现就毫无效果了）
[str addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid|NSUnderlineStyleSingle) range:NSMakeRange(2, str1.length - 2)];
[str addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:12] range:NSMakeRange(2, str1.length - 2)];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(2, str1.length - 2)];
label.attributedText
= str;
}
2.最终解决办法（上面3行代码合并在一起最终实现了效果）
-(void)lastLabelDeal:(NSString *)str1 string:(NSString *)str2 label:(UILabel *)label{
NSMutableAttributedString
*str = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:@"%@ %@",str1,str2]];
[str addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlineStyleSingle|NSUnderlinePatternSolid) range:NSMakeRange(2, str1.length - 2)];
[str
addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(str1.length + 2,str2.length)];
／／上面3行代码合并在一起最终实现了效果
[str addAttributes:@{
NSStrikethroughStyleAttributeName:@(NSUnderlineStyleThick),
NSForegroundColorAttributeName:
[UIColor lightGrayColor],
NSBaselineOffsetAttributeName:
@(0),
NSFontAttributeName: [UIFont systemFontOfSize:12]
} range:NSMakeRange(2, str1.length - 2)];
label.attributedText
= str;
}
原文：http://www.cnblogs.com/liuzhuan155/p/7040205.html