html
<button type="button" onclick="wxpay.config()" class="btn">創(chuàng)建二維碼</button>
js
var $;
layui.use(['jquery'], function () {
$ = layui.jquery;
});
var wxpay = {
config: function () {
//自由發(fā)揮
alert($("#username").val());
}
};
