从富文本编辑器输入内容，然后前端通过接口获取到的这些内容会自带很

var content;
         var s = "";
         if(str.length == 0) return "";
         s = datas[i].content.replace(/&/g,"&");
         s = s.replace(/&lt;/g,"<");
         s = s.replace(/&gt;/g,">");
         s = s.replace(/&nbsp;/g," ");
         s = s.replace(/&#39;/g,"\'");
         s = s.replace(/&quot;/g,"\"");
         var textstr =s.replace(/<[^>]*>|/g,"")

解决方法链接：https://blog.csdn.net/wujiangwei567/article/details/41051225