layui 富文本赋值：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv=Content-Type content=text/html; charset=utf-8 />
<title>layui</title>
<meta name=renderer content=webkit>
<meta http-equiv=X-UA-Compatible content=IE=edge,chrome=1>
<meta name=viewport content=width=device-width, initial-sca
