在UILabel第一个元素加图片

　　NSMutableAttributedString *goalTipStr = [[NSMutableAttributedString alloc]initWithString:@"请关注给广告主带来的效果，结单时的收入，将根据订单的目标效果的完成比例结算。"];
    NSTextAttachment *alertImg = [[NSTextAttachment alloc]init];
    alertImg.image = [UIImage imageNamed:@"!_gray"];
    alertImg.bounds=CGRectMake(0, -2, 13, 13);
    NSAttributedString *imgStr = [NSAttributedString attributedStringWithAttachment:alertImg];
    [goalTipStr insertAttributedString:imgStr atIndex:0];

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, 200, 44)];
    label.text = goalTipStr;

　　[self.view addSubview:label];

未经本人允许、请勿转发。。。。