//创建富文本

    NSMutableAttributedString *attri = [[NSMutableAttributedString alloc] initWithString:@" -积分商城-热门商品-优惠券，后续会陆续打通东方明珠塔等各类上海文化消费优惠券。"];

    //NSTextAttachment可以将要插入的图片作为特殊字符处理

    NSTextAttachment *attch = [[NSTextAttachment alloc] init];

    //定义图片内容及位置和大小

    attch.image = [UIImage imageNamed:@"home_profile_icon"];

    attch.bounds = CGRectMake(, , , );

    //创建带有图片的富文本

    NSAttributedString *string = [NSAttributedString attributedStringWithAttachment:attch];

    //将图片放在最后一位

    //[attri appendAttributedString:string];

    //将图片放在第一位

    [attri insertAttributedString:string atIndex:];

    //用label的attributedText属性来使用富文本

    _imgLabel.attributedText = attri;

    //若想对图片添加点击事件，现在的想法是在label上添加一个透明按钮，位置大小跟图片的相同

    _imgLabel.userInteractionEnabled = YES;

    UIButton *clearBtn = [UIButton buttonWithType:UIButtonTypeCustom];

    clearBtn.frame = CGRectMake(, , attch.bounds.size.width, attch.bounds.size.height+);

    clearBtn.backgroundColor = [UIColor clearColor];

    [clearBtn addTarget:self action:@selector(alertSth) forControlEvents:UIControlEventTouchUpInside];

    [_imgLabel addSubview:clearBtn];