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最近斯巴达vps比较火，一机难求，写了个js脚本用于抢购，效果还不错，推荐使用chrome浏览器，安装Tampermonkey扩展使用。

// ==UserScript==
// @name         自动抢购买vps
// @namespace    https://www.haiyun.me
// @version      0.1
// @description  buy spartanhost vps
// @author       www.haiyun.me
// @match        https://billing.spartanhost.net/cart.php?a=*
// @grant        none
// ==/UserScript==

(function() {
    var forcedReload = false;
    var time = 500; 
    var url = document.URL;
    var hostname = "www.haiyun.me";
    var customfield = "website";
    if (document.title == '502 Bad Gateway') {
        setTimeout(function() {
            window.location.reload(forcedReload);
        }, time);
    } else if (document.title == '504 Gateway Time-out') {
        setTimeout(function() {
            window.location.reload(forcedReload);
        }, time);
    } else if (document.title == '503 Service Temporarily Unavailable') {
        setTimeout(function() {
            window.location.reload(forcedReload);
        }, time);
    } else if (document.title == '500 Internal Server Error') {
        setTimeout(function() {
            window.location.reload(forcedReload);
        }, time);
    } else if (document.getElementsByTagName('h1')[0].innerHTML == '无法访问此网站') {
        setTimeout(function() {
            window.location.reload(forcedReload);
        }, time);
    }

    if (url.indexOf("https://billing.spartanhost.net/cart.php?a=add") != -1) {
        var str = document.getElementById("order-boxes").innerHTML;
        if (str.indexOf("Out of Stock") != -1) {
            setTimeout(function() {
                window.location.reload(forcedReload);
            }, time);
        }
    } else if (url.indexOf("https://billing.spartanhost.net/cart.php?a=confproduct") != -1) {
        document.getElementById("inputHostname").value = hostname;
        var element = document.querySelector('input[name^="customfield"]');
        element.value = customfield;
        document.getElementById("btnCompleteProductConfig").click();
    } else if (url.indexOf("https://billing.spartanhost.net/cart.php?a=view") != -1) {
        document.getElementById("checkout").click();
    } else if (url.indexOf("https://billing.spartanhost.net/cart.php?a=checkout") != -1) {
        document.getElementById("iCheck-accepttos").click();
        document.getElementById("btnCompleteOrder").click();
    }
})();