UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 30)];
label1.text=@"中划线";
label1.textColor = [UIColor lightGrayColor];
NSDictionary *attributeDict = @{NSStrikethroughStyleAttributeName:[NSNumber numberWithInteger:NSUnderlineStyleSingle]};
NSMutableAttributedString*attributeStr = [[NSMutableAttributedStringalloc]initWithString:label1.textattributes:attributeDict];
label1.attributedText= attributeStr;
[self.viewaddSubview:label1];
UILabel*label2 = [[UILabelalloc]initWithFrame:CGRectMake(100,200,200,30)];
label2.text=@"下划线";
label2.textColor = [UIColor lightGrayColor];
NSDictionary *attributeDict2 = @{NSUnderlineStyleAttributeName:[NSNumber numberWithInteger:NSUnderlineStyleSingle]};
NSMutableAttributedString*attributeStr2 = [[NSMutableAttributedStringalloc]initWithString:label2.textattributes:attributeDict2];
label2.attributedText= attributeStr2;
[self.viewaddSubview:label2];
