1.在body处
<body onkeydown="on_return(event);">
2.声明一下js代码
<script type="text/javascript">
???????window.onload = function () { document.getElementById(‘account‘).value = ‘‘ } //账号框
???????window.onload = function () { document.getElementById(‘pwd‘).value = ‘‘ } //密码框
???function on_return(event){
???????if(event.keyCode == 13){
???????????if (document.all(‘login‘) != null) {
???????????????document.all(‘login‘).click(); //登陆按钮id
???????????}
???????}
???}
???</script>
3.登陆按钮加点击事件
onclick="check()"
html页面登陆按enter键实现自动登陆操作
原文地址：https://www.cnblogs.com/FalseNull/p/8947503.html