$(document).on("click", "#sd4", function() {
            $.modal({
                title: "Hello",
                text: "我是自定义的modal",
                buttons: [
                    { text: "支付宝", onClick: function(){ console.log(1)} },
                    { text: "微信支付", onClick: function(){ console.log(2)} },
                    { text: "取消", className: "default", onClick: function(){ console.log(3)} },
                ]
            });
        });