刚刚利用document.createElement("img")实现了在textarea里面添加表情的功能，但问题就是表情无法存储到数据库，每次浏览的帖子的时候，表情就没了，所以想问问有没有什么好方法？
回复讨论(解决方案)
把图片的URL地址存到数据库里
这一步已经做了，但用什么方法可以判断留言人发布的留言中，表情图片所在的位置，并且按照原文显示出来呢？
这样做不是麻烦么？用开源 的编辑器就行了 kindedit，CKEdit之类的，很方便
用div 设置啥属性可以出现textarea的效果，还可以显示图片，具体的自己查下
textarea.innerHTML="img src=.....jpg"
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