$(document).ready(function () {    $("#txt_JumpPager").keydown(function (e) {      var curKey = e.which;      if (curKey == 13) {        $("#lbtn_JumpPager").click();        return false;      }    });}); //回车事件 $(document).keyup(function (event) {
        if (event.keyCode == 13) {
            $(".log-but").triggerHandler("click");     } }); 以上两种方法都ok