function getKey(event) {
if (event.keyCode == 13) {
alert("我是回车键");
}
}
<input type="password" onkeypress="getKey(event);"/>
function getKey(event) {
if (event.keyCode == 13) {
alert("我是回车键");
}
}
<input type="password" onkeypress="getKey(event);"/>