label不同颜色不同字体及加删除线

NSMutableAttributedString

NSMakeRange(x,y)

NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"预订瑜伽＊1节"];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor whiteColor] range:NSMakeRange(0,2)];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor orangeColor] range:NSMakeRange(2,5)];//设置颜色
[str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Arial-BoldMT" size:20] range:NSMakeRange(0,2)];
[str addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Arial-BoldMT" size:15] range:NSMakeRange(2,5)];//设置字体
cell_total.classLabel.attributedText = str;

NSString *oldPriceString = [NSString stringWithFormat:@"原价:%d元",oldPrice];
NSMutableAttributedString *attri = [[NSMutableAttributedString alloc] initWithString:oldPriceString];
[attri addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid | NSUnderlineStyleSingle) range:NSMakeRange(0, oldPriceString.length)];
label.attributedText = attri;