swift4富文本使用，swift4同一个label不同颜色不同

最近项目使用swift需要用到富文本，网上搜都是OC的或者swift2的，不多说直接上

Swift4.0：

• 此方法适用于textFiled的占位字符
• textView
• UILabel
• 按钮需要文字的地方都可以

先看效果

00E18D8B-679D-40B2-89B8-DCB72D645048.png

在上代码

 func FuWenBen() -> NSMutableAttributedString {
        
        //定义富文本即有格式的字符串
        let attributedStrM : NSMutableAttributedString = NSMutableAttributedString()
        
//        左上角星星
        let xingxing = NSAttributedString.init(string: "*", attributes: [NSAttributedStringKey.backgroundColor : UIColor.black , NSAttributedStringKey.foregroundColor : UIColor.red , NSAttributedStringKey.font : UIFont.boldSystemFont(ofSize: 20) ,NSAttributedStringKey.baselineOffset : (20)])
        
        let wo = NSAttributedString.init(string: "我", attributes: [NSAttributedStringKey.backgroundColor : UIColor.gray , NSAttributedStringKey.foregroundColor : UIColor.green , NSAttributedStringKey.font : UIFont.boldSystemFont(ofSize: 30)])
 
        let shi : NSAttributedString = NSAttributedString(string: "是", attributes: [NSAttributedStringKey.foregroundColor  : UIColor.purple, NSAttributedStringKey.font : UIFont.systemFont(ofSize: 12)])
 
        //帅逼
        let shuaibi : NSAttributedString = NSAttributedString(string: "帅逼", attributes: [NSAttributedStringKey.foregroundColor : UIColor.lightGray, NSAttributedStringKey.font : UIFont.systemFont(ofSize: 38)])
        
        //图片
        let smileImage  = UIImage.init(named: "ic_avarta")
        let textAttachment : NSTextAttachment = NSTextAttachment()
        textAttachment.image = smileImage
        textAttachment.bounds = CGRect(x: 0, y: -4, width: 22, height: 22)
        
        attributedStrM.append(xingxing)
        attributedStrM.append(wo)
        attributedStrM.append(shi)
        attributedStrM.append(shuaibi)
        attributedStrM.append(NSAttributedString(attachment: textAttachment))
        
        return attributedStrM
    }