方法一：

document.onkeydown = function (e) { // 回车提交表单
// 兼容FF和IE和Operavar theEvent = window.event || e;var code = theEvent.keyCode || theEvent.which || theEvent.charCode;if (code == 13) {queryInfo();}
}

方法二：JS监听某个DIV区域

$("#queryTable").bind("keydown",function(e){// 兼容FF和IE和Operavar theEvent = e || window.event;var code = theEvent.keyCode || theEvent.which || theEvent.charCode;if (code == 13) {//回车执行查询$("#queryButton").click();}
});

方法三：JS监听某个输入框

//回车事件绑定
$('#search_input').bind('keyup', function(event) {if (event.keyCode == "13") {//回车执行查询$('#search_button').click();}
});

原文链接：https://www.cnblogs.com/xulz/p/9208615.html