更改UILabel的字体样式及某段文字中的颜色

NSMutableAttributedString *str = [[NSMutableAttributedString
alloc] initWithString:content];
[str addAttribute:NSForegroundColorAttributeName
value:WEIXINSYSTEM_COLOR
range:range1];

[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"Arial-BoldItalicMT"
size:10.0]
range:NSMakeRange(0,
5)];
[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"HelveticaNeue-Bold"
size:10.0]
range:NSMakeRange(6,
12)];
[str addAttribute:NSFontAttributeName
value:[UIFont fontWithName:@"Courier-BoldOblique"
size:10.0]
range:NSMakeRange(19,
6)];


cell.awardCount_attLabel.attributedText = str;