jQuery实现按Enter键触发事件？

 $(function(){
    document.onkeydown = function(e){  
      var ev = document.all ? window.event : e;
      if(ev.keyCode==13) {// 如（ev.ctrlKey && ev.keyCode==13）为ctrl+Center 触发
          alert("huiche");
      }
    }
 });

$(function () {
           document.onkeydown = function (event) {
               var e = event || window.event || arguments.callee.caller.arguments[0];
               if (e && e.keyCode == 13) {
                   //to do something;
               }
           };
       });

<script> 
    $(function(){
        $(‘#button‘).click(function(){
            $(‘#button‘).attr(‘disabled‘,‘disabled‘);
        });
        $(‘body‘).keydown(function(){
            if (event.keyCode == 13) {    enter 键值 为13
                $(‘#button‘).click();
            };            
            
        });

    })
</script>