if (self.messageModel) {

        NSString * htmlString = self.messageModel.contentText;

        NSAttributedString * attrStr1 = [[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];  //就这句有用

        self.messageTextView.attributedText = attrStr1;

        if () {

            NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:@"【重要】"];

             [attrStr appendAttributedString:attrStr1];

            NSRange range = NSMakeRange(, );

            [attrStr addAttribute:NSForegroundColorAttributeName value:GNHGreenColor range:range];

            self.messageTextView.attributedText = attrStr;

        }

    }