1.兼容chrome和firefox内核的浏览器自动填充问题
<input type='text' style='display:none'> <!-- 针对firefox -->
用户名:<input type='text' autocomplete='off'>
密码:<input type='password' autocomplete='new-password'>
或许Firefox的历史输入比较变化莫测
<input type='password' autocomplete="new-password" style="background-color: #FFFFFF!important;" readonly onfocus="this.removeAttribute('readonly');" onblur="this.setAttribute('readonly',true);" />>