iOS 給UILabel文字加下劃線…

原文地址：iOS 給UILabel文字加下劃線，同一個label多種顏色作者：星魂知夢

    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, 300, 100)];
    label.backgroundColor = [UIColor redColor];
    label.numberOfLines = 3;
    NSMutableAttributedString *content = [[NSMutableAttributedString alloc]initWithString:[NSString stringWithFormat:@"您的待辦業務條fasdfasdfosadfjasdkljfklasjklfjasdlkjfklasdjklfjalskdjflkadsj"]];
    NSRange contentRange = {0,[content length]};
    [content addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlineStyleSingle] range:contentRange];
//註釋部分爲改變字體顏色僅ios7
  //   NSRange contentRange = {0,2};
//    [content addAttribute:NSForegroundColorAttributeName value:(id)[[UIColor blueColor] CGColor] range:contentRange];
//    NSRange co = {4,5};
  //  [content addAttribute:NSForegroundColorAttributeName value:(id)[[UIColor blueColor] CGColor] range:co];
    label.attributedText = content;
    [self.view addSubview:label];