JQueryAjax的封装

/*  ajax post提交  url ,param ,datat为html,json,text ,callback回调函数  , return */
    function jsonAjax(url, param, datat, callback) {
        $.ajax({
            type: "post",
            url: url,
            cache: false,
            async: false,
            data: param,
            dataType: datat,
            success: callback,
            error: function () {
                alert("失败！");
            }
        });
    }


    jsonAjax("/Meeting/JoinMeeting", dataJson, "json", callBack);

    function callBack(){
        
    }