NSMutableParagraphStyle*paragraphStyle = [[NSMutableParagraphStylealloc]init];
paragraphStyle.lineSpacing=5;//字體的行間距
warnView.text=@"您的車輛信息尚未完善,無法發布資源,是否立即去完善車輛信息?";
NSDictionary*attributes =@{NSFontAttributeName:[UIFontsystemFontOfSize:14],NSParagraphStyleAttributeName:paragraphStyle};
warnView.attributedText= [[NSAttributedStringalloc]initWithString:warnView.textattributes:attributes];