危险，慎用

自动填写卡信息的油猴脚本

// ==UserScript==
// @name         Card Input
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.zuora.com/apps/PublicHostedPageLite.do**
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function elementReady(selector) {
        console.log(selector);
        return new Promise((resolve, reject) => {
            let el = document.querySelector(selector);
            if (el) { resolve(el); }
            new MutationObserver((mutationRecords, observer) => {
                // Query for elements matching the specified selector
                Array.from(document.querySelectorAll(selector)).forEach((element) => {
                    resolve(element);
                    //Once we have resolved we don't need the observer anymore.
                    observer.disconnect();
                });
            })
                .observe(document.documentElement, {childList: true, subtree: true});
        });
    }

    function setForm() {

        elementReady("#input-creditCardNumber").then(() => {
            document.querySelector("#input-creditCardNumber").click();
            document.querySelector("#input-creditCardNumber").value = "12345678901";
            document.querySelector("#input-creditCardExpirationMonth").click();
            document.querySelector("#input-creditCardExpirationMonth").querySelector("option[value='06']").selected = true;
            document.querySelector("#input-creditCardExpirationYear").click();
            document.querySelector("#input-creditCardExpirationYear").querySelector("option[value='2027']").selected = true;
            document.querySelector("#input-cardSecurityCode").click();
            document.querySelector("#input-cardSecurityCode").value = "174";
            document.querySelector("#submitButton").click();
        });
    }
    setForm()
})();