jquery validate 用alert提示错误

 jQuery().ready(function() {            var validator = jQuery(".form1").validate({                rules: {                    docTypeId: "required",                    "uploadFiles[0].file":"required"                },                messages: {                    docTypeId: "请选择****",                     "uploadFiles[0].file":"请选择文件"                },                                 showErrors: function(errorMap, errorList) {                    var msg = "";                    jQuery.each(errorList, function(i, v) {                        msg += (v.message + "\r\n");                    });                    if (msg != ""){                        alert(msg);       ?           }                 }            });            jQuery("#btn_submit").click(function() {                var check = validator.form();                if (check) {                    jQuery(".form1").submit();                }            });        });

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