有道购物助手脚本版，支持chrome，解决bug【Update 0.03】！

司寇阳朔

2023-12-01

购物比价的扩展和脚本找了很多，要不是对比结果不及时，数据滞后，要不是有后门，后台修改链接，经过推广网站赚钱。

虽然chrome的有道购物助手扩展代码是远程的，存在隐患，但目前试用来说，数据准确性比较高，且没有做什么手脚，因此一直在用。

无奈chrome的扩展太耗内存，且部分功能感觉作用不大，而查看扩展的代码，也就是调用了一下远程的js代码，于是上网查了一下，在userscript找到一个脚本“youdaoGWZS”，就是脚本版的有道购物助手，看来有同样需求的人还是有的，不过这个脚本是给firefox用的，chrome下有问题，问题下面说。

试用了一下，感觉有几点问题，问题如下：

1）由于使用了GM_getValue/setValue函数，chrome无法支持配置的保存和提取，导致chrome每次刷新都会弹出优惠提示框，很影响使用；

2）部分网站采用了iframe方式布局，脚本中未处理，导致iframe中也会弹出有道购物助手，页面混乱；

3）采用了setInterval来循环获取配置字符串，其实可以简单的初始化一下，然后通过addEventListener来自动更新配置字符串。

于是本着自己方便，做了一下修改，目前chrome下使用正常，代码如下：

// ==UserScript==
// @name youdao zhushou
// @description 有道购物助手
// @update 2012-2-1
// @create 2012-2-1
// @version 0.0.1
// @author lemonbox
// @namespace youdao
// @include http://product.yesky.com/product/*/*/price.shtml
// @include http://*.dangdang.com/*
// @include http://*.amazon.cn/*
// @include http://*.139shop.com/*
// @include http://*.taobao.com/*
// @include http://*.ouku.com/*
// @include http://*.china-pub.com/*
// @include http://*.rayi.cn/*
// @include http://*.no5.com.cn/*
// @include http://*.360buy.com/*
// @include http://*.18900.com/*
// @include http://*.wl.cn/*
// @include http://*.80ebus.com/*
// @include http://*.bearbuy.com.cn/*
// @include http://*.enet.com.cn/*
// @include http://*.958shop.com/*
// @include http://*.51youpin.com/*
// @include http://*.panasonic.cn/*
// @include http://*.sport2008.com.cn/*
// @include http://*.mpshow.com.cn/*
// @include http://*.e800.com.cn/*
// @include http://*.sanfo.com/*
// @include http://*.yide.com/*
// @include http://*.yasai.cn/*
// @include http://*.dixintong.com/*
// @include http://*.ouyea.com/*
// @include http://*.afffff.com/*
// @include http://*.yaja.com.cn/*
// @include http://*.bookschina.com/*
// @include http://*.chengdecs.com/*
// @include http://*.nokia.com.cn/*
// @include http://*.lijiababy.com.cn/*
// @include http://*.aiyingshi.com/*
// @include http://*.99read.com/*
// @include http://*.8264.com/*
// @include http://*.d1.com.cn/*
// @include http://*.redbaby.com.cn/*
// @include http://*.goodjd.com/*
// @include http://*.motostore.com.cn/*
// @include http://*.leyou.com/*
// @include http://*.benq.com.cn/*
// @include http://*.clady.com/*
// @include http://*.7shop24.com/*
// @include http://*.ehaier.com/*
// @include http://*.guopi.com/*
// @include http://*.lenovo.com.cn/*
// @include http://*.51dg.com/*
// @include http://*.cnave.com/*
// @include http://*.cosme-de.com/*
// @include http://*.sasa.com/*
// @include http://*.qinqinbaby.com/*
// @include http://*.olympus.com.cn/*
// @include http://*.strawberrynet.com/*
// @include http://*.bobomobi.com/*
// @include http://*.39ty.com/*
// @include http://*.133china.com/*
// @include http://*.hopebook.net/*
// @include http://*.the365.com/*
// @include http://*.beifabook.com/*
// @include http://*.timesinfor.com/*
// @include http://*.ofcard.com/*
// @include http://*.cncard.com/*
// @include http://*.zgcbb.com/*
// @include http://*.yongle.com.cn/*
// @include http://*.2688.com/*
// @include http://*.e-lining.com/*
// @include http://*.shishang.com.cn/*
// @include http://*.m18.com/*
// @include http://*.dayoo.com/*
// @include http://*.redmall.com.cn/*
// @include http://*.vafox.com/*
// @include http://*.532shop.com/*
// @include http://*.olymsports.com/*
// @include http://*.uiyi.cn/*
// @include http://*.it88.com.cn/*
// @include http://*.letao.com/*
// @include http://*.ourtasty.com/*
// @include http://*.sssy.com.cn/*
// @include http://*.likebuy.com/*
// @include http://*.shoubiao.com.cn/*
// @include http://*.77toy.com/*
// @include http://*.icson.com/*
// @include http://*.xindou.com/*
// @include http://*.yumaoclub.com/*
// @include http://*.aiju.com/*
// @include http://*.lanjiahuo.com/*
// @include http://*.yihaodian.com/*
// @include http://*.ejia.com/*
// @include http://*.5366.com/*
// @include http://*.jsbcmall.com/*
// @include http://*.milimall.com/*
// @include http://*.togj.com/*
// @include http://*.yoyo18.com/*
// @include http://*.buy007.com/*
// @include http://*.taoxie.cn/*
// @include http://*.xiaolaoren.com/*
// @include http://*.jiyi.asia/*
// @include http://*.shentop.com/*
// @include http://*.yuego.com/*
// @include http://*.258sd.com/*
// @include http://*.akimimi.com/*
// @include http://*.augshow.com/*
// @include http://*.obuy.cn/*
// @include http://*.sasacity.com/*
// @include http://*.woye.com/*
// @include http://*.wow-diamond.com.cn/*
// @include http://*.xiaozhuren.com/*
// @include http://*.egobuy.com/*
// @include http://*.shaobag.com/*
// @include http://*.hit168.com.cn/*
// @include http://*.uushouji.com/*
// @include http://*.168dg.com/*
// @include http://*.locknlock.com.cn/*
// @include http://*.gzbookcenter.com/*
// @include http://*.naccoo.com/*
// @include http://*.yoger.com.cn/*
// @include http://*.bbesports.com/*
// @include http://*.newegg.com.cn/*
// @include http://*.dconline.com.cn/*
// @include http://*.mbaobao.com/*
// @include http://*.yyosso.com/*
// @include http://*.ogage.cn/*
// @include http://*.justonline.cn/*
// @include http://*.cosize.com/*
// @include http://*.yangsam.com/*
// @include http://*.okaybuy.com.cn/*
// @include http://*.happigo.com/*
// @include http://*.menglu.com/*
// @include http://*.shishangqiyi.com/*
// @include http://*.vancl.com/*
// @include http://*.olomo.com/*
// @include http://*.masamaso.com/*
// @include http://*.hakunamatata.cn/*
// @include http://*.100fo.com/*
// @include http://*.yifu.com/*
// @include http://*.zopo.com/*
// @include http://*.shift6-6.com/*
// @include http://*.ishop.cn/*
// @include http://*.u1382.com/*
// @include http://*.yeeson.com/*
// @include http://*.vaakav.com/*
// @include http://*.hany.cn/*
// @include http://*.carrefour.com.cn/*
// @include http://*.3suisses.com.cn/*
// @include http://*.cdream.com/*
// @include http://*.yaofang.cn/*
// @include http://*.jxdyf.com/*
// @include http://*.youjk.com/*
// @include http://*.baiyjk.com/*
// @include http://*.sinobuy.cn/*
// @include http://*.daoyao.com/*
// @include http://*.511yd.com/*
// @include http://*.51yao.com.cn/*
// @include http://*.xtpo.cn/*
// @include http://*.okbig.com/*
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// @include http://*.mamahao.cn/*
// @include http://*.dongdianwang.com/*
// @include http://*.shihui.tv/*
// @include http://*.yoho.cn/*
// @include http://*.goonow.com/*
// @include http://*.100god.com/*
// @include http://*.caistv.com/*
// @include http://*.mmgw.cn/*
// @include http://*.365.com/*
// @include http://*.newgo5.com/*
// @include http://*.yeecare.com/*
// @include http://*.qissun.com/*
// @include http://*.ideemall.com/*
// @include http://*.96128.com/*
// @include http://*.eboxbuy.com/*
// @include http://*.wanew.com/*
// @include http://*.1j.cn/*
// @include http://*.mooiee.com/*
// @include http://*.wooha.com/*
// @include http://*.jtlhome.com/*
// @include http://*.kela.cn/*
// @include http://*.maichawang.com/*
// @include http://*.wangshanghai.com/*
// @include http://*.xiadingdan.com/*
// @include http://*.cansibei.cn/*
// @include http://*.joyran.com/*
// @include http://*.topshoes.cn/*
// @include http://*.bbn.com.cn/*
// @include http://*.huachu.com.cn/*
// @include http://*.fim.com.cn/*
// @include http://*.tinies.cn/*
// @include http://*.maywon.com/*
// @include http://*.venusveil.com/*
// @include http://*.ushan.cn/*
// @include http://*.daisonghua.com/*
// @include http://*.oyego.com/*
// @include http://*.laeibelle.com/*
// @include http://*.maimaike.cn/*
// @include http://*.chn81.com/*
// @include http://*.qingci.com/*
// @include http://*.huimeifang.cn/*
// @include http://*.baandma.com/*
// @include http://*.guobuy.com/*
// @include http://*.114x315.com/*
// @include http://*.cnfse.com/*
// @include http://*.chinayrs.com/*
// @include http://*.sun521.com/*
// @include http://*.moonbasa.com/*
// @include http://*.disiqu.cn/*
// @include http://*.mmuses.com/*
// @include http://*.xiezi.com/*
// @include http://*.boqii.com/*
// @include http://*.zbird.com/*
// @include http://*.acosme.com/*
// @include http://*.yiditu.com/*
// @include http://*.51eng.com/*
// @include http://*.ecosme.cn/*
// @include http://*.mamamei.com/*
// @include http://*.ejaja.cn/*
// @include http://*.yesfashion.cn/*
// @include http://*.4inlook.com/*
// @include http://*.lens2005.com/*
// @include http://*.e-giordano.com/*
// @include http://*.jshoppers.com/*
// @include http://*.icaifeng.com/*
// @include http://*.lamiu.com/*
// @include http://*.pb89.com/*
// @include http://*.conslive.com/*
// @include http://*.colebuy.com/*
// @include http://*.jomo.cc/*
// @include http://*.pirateship.com.cn/*
// @include http://*.flowercn.com/*
// @include http://*.chedangjia.com/*
// @include http://*.goyahome.com/*
// @include http://*.car6688.com/*
// @include http://*.04919.com/*
// @include http://*.01goo.com/*
// @include http://*.aim36.com/*
// @include http://*.imeelee.com/*
// @include http://*.inoble.com.cn/*
// @include http://*.hw2008.cn/*
// @include http://*.7sev.com/*
// @include http://*.sz-esun.com/*
// @include http://*.jew-online.com/*
// @include http://*.22shop.com/*
// @include http://*.palcent.com/*
// @include http://*.jinbaidu.com/*
// @include http://*.chashu.cn/*
// @include http://*.lili.hk/*
// @include http://*.ku56.net/*
// @include http://*.carpee.com/*
// @include http://*.lianhua360.com/*
// @include http://*.godida.com/*
// @include http://*.flowerby.com/*
// @include http://*.buy361.cn/*
// @include http://*.bonglett.cn/*
// @include http://*.all3c.com/*
// @include http://*.china-gift.com/*
// @include http://*.vipshop.com/*
// @include http://*.tian10.com/*
// @include http://*.maiaa.com/*
// @include http://*.ugou.cn/*
// @include http://*.wg365.com/*
// @include http://*.pgbao.com/*
// @include http://*.1gou.com/*
// @include http://*.sinow.com.cn/*
// @include http://*.doulaimai.com/*
// @include http://*.95mobi.com/*
// @include http://*.2bao.com/*
// @include http://*.5188bag.com/*
// @include http://*.goshishang.com/*
// @include http://*.baby2688.com/*
// @include http://*.paikepen.com/*
// @include http://*.minibuy.com/*
// @include http://*.9you.com/*
// @include http://*.xzuan.com/*
// @include http://*.sawbuy.com/*
// @include http://*.51mob.com.cn/*
// @include http://*.ladypk.com/*
// @include http://*.okddy.com/*
// @include http://*.6688.com/*
// @include http://*.jinjichina.com/*
// @include http://*.bazha.com.cn/*
// @include http://*.shjdq.com/*
// @include http://*.bloves.com/*
// @include http://*.homeold.cn/*
// @include http://*.loscent.com.cn/*
// @include http://*.ttago.com/*
// @include http://*.qudong365.com/*
// @include http://*.lehetimes.com/*
// @include http://*.wumeiwang.com/*
// @include http://*.jiaoyitong.com.cn/*
// @include http://*.gouwulian.com/*
// @include http://*.le978.cn/*
// @include http://*.7caihua.com/*
// @include http://*.piaoliang100.com/*
// @include http://*.xuandoo.com/*
// @include http://*.jiajiajk.com/*
// @include http://*.igobb.com/*
// @include http://*.cw100.com/*
// @include http://*.8mmo.com/*
// @include http://*.tiexue.net/*
// @include http://*.yjcs.cn/*
// @include http://*.ono.com.cn/*
// @include http://*.office.cn/*
// @include http://*.kidslandshop.com/*
// @include http://*.dianpu.com/*
// @include http://*.ledaojia.com/*
// @include http://*.itzm.com/*
// @include http://*.6root.com/*
// @include http://*.petyoo.com/*
// @include http://*.dalanzhu.com/*
// @include http://*.cobuy.com.cn/*
// @include http://*.lugo365.com/*
// @include http://*.ideaco.cn/*
// @include http://*.xiaokang.com/*
// @include http://*.leftlady.com/*
// @include http://*.trackman.cn/*
// @include http://*.91pretty.com/*
// @include http://*.gouduo.com/*
// @include http://*.thinkshop.cn/*
// @include http://*.pcarm.com/*
// @include http://*.salala.com.cn/*
// @include http://*.168flower.com/*
// @include http://*.toys365.com/*
// @include http://*.liyi99.com/*
// @include http://*.58hua.com/*
// @include http://*.iloveyou.com.cn/*
// @include http://*.7cv.com/*
// @include http://*.jiayougo.com/*
// @include http://*.carsfun.com/*
// @include http://*.autosup.com/*
// @include http://*.jumbomart.cn/*
// @include http://*.xdloutdoor.com/*
// @include http://*.5paipai.com/*
// @include http://*.shanghai-sports.com/*
// @include http://*.dayslove.com/*
// @include http://*.biaoshang.hk/*
// @include http://*.kadang.com/*
// @include http://*.veedl.com/*
// @include http://*.momoyoyo.com/*
// @include http://*.upin365.com/*
// @include http://*.maxfunbuy.com/*
// @include http://*.qianxun.com/*
// @include http://*.ihush.com/*
// @include http://*.apabi.com/*
// @include http://*.520eye.com/*
// @include http://*.quwan.com/*
// @include http://*.haotehao.com/*
// @include http://*.car339.com.cn/*
// @include http://*.8801.net/*
// @include http://*.4007000512.com/*
// @include http://*.18to82.com/*
// @include http://*.dtoto.com/*
// @include http://*.juqile.cn/*
// @include http://*.yesmywine.com/*
// @include http://*.best1.com/*
// @include http://*.vegoos.com/*
// @include http://*.5lux.com/*
// @include http://*.lovswan.com/*
// @include http://*.skcoo.com/*
// @include http://*.51y2.com/*
// @include http://*.wtaotao.com/*
// @include http://*.lijigou.com/*
// @include http://*.021kaoshi.com/*
// @include http://*.942radio.com/*
// @include http://*.epetbar.com/*
// @include http://*.u88go.com/*
// @include http://*.lengta.com/*
// @include http://*.hoba.com.cn/*
// @include http://*.luckigo.com/*
// @include http://*.buding.com/*
// @include http://*.6sbuy.com/*
// @include http://*.voipyeah.com/*
// @include http://*.51sheyuan.com/*
// @include http://*.womai.com/*
// @include http://*.ilovezuan.com/*
// @include http://*.7c.ms/*
// @include http://*.pt9999.com/*
// @include http://*.xinhuabookstore.com/*
// @include http://*.clinique.com.cn/*
// @include http://*.goocctv.cn/*
// @include http://*.meilieasy.com/*
// @include http://*.qumei.com/*
// @include http://*.ai356.com/*
// @include http://*.buynow.com.cn/*
// @include http://*.meilele.com/*
// @include http://*.emengniu.com/*
// @include http://*.winenice.com/*
// @include http://*.186mall.com/*
// @include http://*.lyceem.com/*
// @include http://*.929.cn/*
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// @include http://*.dsgoo.com/*
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// @include http://*.dahuozhan.com/*
// @include http://*.9dadao.com/*
// @include http://*.163.com/*
// @include http://*.sea8.cn/*
// @include http://*.purcotton.com/*
// @include http://*.dazhongdianqi.com.cn/*
// @include http://*.51buy.com/*
// @include http://*.qxian.com/*
// @include http://*.mangocity.com/*
// @include http://*.qmango.com/*
// @include http://*.okgolf.cn/*
// @include http://*.manzuo.com/*
// @include http://*.jumei.com/*
// @include http://*.gome.com.cn/*
// @include http://*.zm7.cn/*
// @include http://*.24quan.com/*
// @include http://*.99pto.com/*
// @include http://*.vipstore.com/*
// @include http://*.meituan.com/*
// @include http://*.yougou.com/*
// @include http://*.58.com/*
// @include http://*.aibang.com/*
// @include http://*.didatuan.com/*
// @include http://*.lashou.com/*
// @include http://*.mengmai.com/*
// @include http://*.xing800.com/*
// @include http://*.caomeipai.com/*
// @include http://*.suning.com/*
// @include http://*.yobrand.com/*
// @include http://*.nonmin88.com/*
// @include http://*.leyou.com.cn/*
// @include http://*.360hqb.com/*
// @include http://*.hitao.com/*
// @include http://*.jiatx.com/*
// @include http://*.naguu.com/*
// @include http://*.aimer.com.cn/*
// @include http://*.lusen.com/*
// @include http://*.k121.com/*
// @include http://*.tieyou.com/*
// @include http://*.vivian.cn/*
// @include http://*.ctrip.com/*
// @include http://*.outice.com/*
// @include http://*.tiantian.com/*
// @include http://*.6919.com/*
// @include http://*.jiaju.com/*
// @include http://*.homevv.com/*
// @include http://*.kxtkx.com/*
// @include http://*.sonmai.cn/*
// @include http://*.waipowang.com/*
// ==/UserScript==
(function() {	
	if (window.top != window.self)  //don't run on frames or iframes
		return;
	
	// Let's setup some html5 storage hooks incase greasemonkey is not available
	if (typeof(GM_getValue) != "function" && !localStorage)
	{
		window.alert("\
		Your browser does not support localstorage nor does it support greasemonkey commands!\n\
		\n\
		If you are running Firefox please upgrade to a newer version or install Greasemonkey.\n\
		If you are running Chrome please upgrade to a newer version or install Tampermonkey.\
		");
		avtng.status.browserErr = 101;
	}
	else if(typeof(GM_getValue) != "function")
	{
		var GM_getValue = function (key, def) {return (localStorage.getItem(key) != "undefined")? localStorage.getItem(key) : def;};
		var GM_setValue = function (key, val) {localStorage.setItem(key, val);};
		var GM_deleteValue = function (key) {localStorage.removeItem(key);};
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	var optionstr = GM_getValue('youdaoGWZS_options', '');
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	var optionNode = document.getElementById('youdaoGWZS_options');
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		optionNode.id = 'youdaoGWZS_options';
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		optionNode.innerHTML = optionstr;
		document.documentElement.appendChild(optionNode);
		if (optionNode.firstChild) {
			optionNode.firstChild.addEventListener(
			'DOMCharacterDataModified', function(event) {
			var currentValue = event.newValue;
			if(currentValue != GM_getValue('youdaoGWZS_options'))
				GM_setValue('youdaoGWZS_options', currentValue);
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	var head = document.getElementsByTagName('head')[0];
	if(!head) return;
	var domscript = document.createElement('script');
	domscript.src = 'http://zhushou.youdao.com/script/extension_2_2.js?browser=chrome';
	domscript.charset = 'utf-8';
	head.appendChild(domscript);
})();

使用方法：将以上代码保存为文本文件，并修改文件后缀为user.js，然后拖入chrome即可安装。

ps：我修改了一下脚本名字，以便和原始脚本区分一下。

再次感谢原作者的脚本。

补充一下：对于弹出的优惠信息窗口，由于原先是chrome扩展程序，可以集中保存关闭该消息框的配置属性，采用脚本后，不同网站的配置无法跨域保存，也就是说，第一次打开一个网站时，还是会弹出优惠信息窗口，关闭后下载打开这个网站，就不会再弹出了。这是和原扩展最大的不同，不过基本上不影响使用。

另外上面的网站是根据有道购物助手中提供的商家列表整理的，原始是一堆正则表达式，如下所示：

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ttp:\/\/.*\.rooyea\.com\/.*|http:\/\/.*\.95box\.com\/.*|http:\/\/.*\.zhaipin\.com\/.*|http:\/\/.*\.lvalue\.net\/.*|http:\/\/.*\.lohat\.cn\/.*|http:\/\/.*\.sapo\.com\.hk\/.*|http:\/\/.*\.aizhigu\.com\.cn\/.*|http:\/\/.*\.kuyundong\.com\/.*|http:\/\/.*\.d1car\.com\/.*|http:\/\/.*\.1626\.com\/.*|http:\/\/.*\.360mart\.com\/.*|http:\/\/.*\.ebtea\.com\/.*|http:\/\/.*\.cm365\.com\/.*|http:\/\/.*\.bgtvs\.com\/.*|http:\/\/.*\.w1\.cn\/.*|http:\/\/.*\.mokamall\.com\/.*|http:\/\/.*\.xifuquan\.com\/.*|http:\/\/.*\.duoding\.com\/.*|http:\/\/.*\.paixie\.net\/.*|http:\/\/.*\.vjia\.com\/.*|http:\/\/.*\.chris-tina\.com\/.*|http:\/\/.*\.duhub\.com\/.*|http:\/\/.*\.hongkouzi\.com\/.*|http:\/\/.*\.viccol\.com\/.*|http:\/\/.*\.shopin\.com\.cn\/.*|http:\/\/.*\.51ka\.com\/.*|http:\/\/.*\.nayao\.com\/.*|http:\/\/.*\.efeihu\.com\/.*|http:\/\/.*\.idshe\.com\/.*|http:\/\/.*\.hi-tec\.cn\/.*|http:\/\/.*\.keede\.com\.cn\/.*|http:\/\/.*\.ebaimi\.com\/.*|http:\/\/.*\.chinapay\.com\/.*|http:\/\/.*\.junph\.com\/.*|http:\/\/.*\.360kxr\.com\/.*|http:\/\/.*\.yintai\.com\/.*|http:\/\/.*\.tuniu\.com\/.*|http:\/\/.*\.dazhe\.cn\/.*|http:\/\/.*\.apple\.com\/.*|http:\/\/.*\.coo8\.com\/.*|http:\/\/.*\.e-my\.com\.cn\/.*|http:\/\/.*\.kuaishubao\.com\/.*|http:\/\/.*\.samsclub\.cn\/.*|http:\/\/.*\.anni\.com\/.*|http:\/\/.*\.okbuy\.com\/.*|http:\/\/.*\.24dq\.com\/.*)$

以上列表有道会时不时更新，不过据说实际上有道自己也只支持了一部分而已，因此我不再维护该网站列表，如果各位觉得网站太多太麻烦，可以只添加自己常去的网站（比如只保留新蛋，京东，亚马逊，当当之类的），其他全部删除就好。

【Update 1】

稍微调整了一下：

1）去掉一堆无用的网站，只保留了最常用的购物网站。

2）改为默认为不弹出优惠信息窗口，不再需要一个个的点击关闭了。

// ==UserScript==
// @name youdao zhushou
// @description 有道购物助手
// @update 2012-2-10
// @create 2012-2-1
// @version 0.0.2
// @author lemonbox
// @namespace youdao
// @include http://product.yesky.com/product/*/*/price.shtml
// @include http://*.dangdang.com/*
// @include http://*.amazon.cn/*
// @include http://*.taobao.com/*
// @include http://*.ouku.com/*
// @include http://*.360buy.com/*
// @include http://*.icson.com/*
// @include http://*.coo8.com/*
// @include http://*.vancl.com/*
// @include http://*.efeihu.com/*
// @include http://*.tao3c.com/*
// @include http://*.suning.com/*
// @include http://*.gome.com.cn/*
// @include http://*.yihaodian.com/*
// @include http://*.all3c.com/*
// @include http://*.newegg.com.cn/*
// ==/UserScript==

(function() {	
	if (window.top != window.self)  //don't run on frames or iframes
		return;
	
	// Let's setup some html5 storage hooks incase greasemonkey is not available
	if (typeof(GM_getValue) != "function" && !localStorage)
	{
		window.alert("\
		Your browser does not support localstorage nor does it support greasemonkey commands!\n\
		\n\
		If you are running Firefox please upgrade to a newer version or install Greasemonkey.\n\
		If you are running Chrome please upgrade to a newer version or install Tampermonkey.\
		");
		avtng.status.browserErr = 101;
	}
	else if(typeof(GM_getValue) != "function")
	{
		var GM_getValue = function (key, def) {return (localStorage.getItem(key) != "undefined")? localStorage.getItem(key) : def;};
		var GM_setValue = function (key, val) {localStorage.setItem(key, val);};
		var GM_deleteValue = function (key) {localStorage.removeItem(key);};
	}

	var optionstr = GM_getValue('youdaoGWZS_options', '');
	if (!optionstr) {
		optionstr = 'browser=chrome;position=down;featureCode=011;isDiscountOpen=close';
		GM_setValue('youdaoGWZS_options', optionstr);
	}
	
	var optionNode = document.getElementById('youdaoGWZS_options');
	if(!optionNode) {
		optionNode = document.createElement('span');
		optionNode.id = 'youdaoGWZS_options';
		optionNode.style.display = 'none';
		optionNode.innerHTML = optionstr;
		document.documentElement.appendChild(optionNode);
		
		if (optionNode.firstChild) {
			optionNode.firstChild.addEventListener('DOMCharacterDataModified', function(event) {
			var currentValue = event.newValue;
			if(currentValue != GM_getValue('youdaoGWZS_options'))
				GM_setValue('youdaoGWZS_options', currentValue);
			}, false);
		}
	}

	var head = document.getElementsByTagName('head')[0];
	if(!head) return;
	var domscript = document.createElement('script');
	domscript.src = 'http://zhushou.youdao.com/script/extension_2_2.js?browser=chrome';
	domscript.charset = 'utf-8';
	head.appendChild(domscript);

})();

【Update 2】

一段时间没有用，发现突然不能用了，于是下载最新的有道购物助手，看了一下代码，做了如下升级：

1）升级后的脚本地址变了，以前的脚本地址不能用了，换为新地址。

2）新版本增加一个优惠券的弹窗，改为默认不再弹出。

3）添加苏宁易购的网址。

更新一下代码：

// ==UserScript==
// @name youdao zhushou
// @description 有道购物助手
// @update 2012-2-1
// @create 2012-2-1
// @version 0.0.1
// @author lemonbox
// @namespace youdao
// @include http://product.yesky.com/product/*/*/price.shtml
// @include http://*.dangdang.com/*
// @include http://*.amazon.cn/*
// @include http://*.taobao.com/*
// @include http://*.ouku.com/*
// @include http://*.360buy.com/*
// @include http://*.icson.com/*
// @include http://*.coo8.com/*
// @include http://*.vancl.com/*
// @include http://*.efeihu.com/*
// @include http://*.tao3c.com/*
// @include http://*.suning.com/*
// @include http://*.gome.com.cn/*
// @include http://*.yihaodian.com/*
// @include http://*.all3c.com/*
// @include http://*.newegg.com.cn/*

// @include http://*.suning.com/*
// ==/UserScript==

(function() {	
	if (window.top != window.self)  //don't run on frames or iframes
		return;
	
	// Let's setup some html5 storage hooks incase greasemonkey is not available
	if (typeof(GM_getValue) != "function" && !localStorage)
	{
		window.alert("\
		Your browser does not support localstorage nor does it support greasemonkey commands!\n\
		\n\
		If you are running Firefox please upgrade to a newer version or install Greasemonkey.\n\
		If you are running Chrome please upgrade to a newer version or install Tampermonkey.\
		");
		avtng.status.browserErr = 101;
	}
	else if(typeof(GM_getValue) != "function")
	{
		var GM_getValue = function (key, def) {return (localStorage.getItem(key) != "undefined")? localStorage.getItem(key) : def;};
		var GM_setValue = function (key, val) {localStorage.setItem(key, val);};
		var GM_deleteValue = function (key) {localStorage.removeItem(key);};
	}

	var optionstr = GM_getValue('youdaoGWZS_options', '');
	if (!optionstr) {
		optionstr = 'browser=chrome;position=down;featureCode=011001;isDiscountOpen=close';
		GM_setValue('youdaoGWZS_options', optionstr);
	}
	
	var optionNode = document.getElementById('youdaoGWZS_options');
	if(!optionNode) {
		optionNode = document.createElement('span');
		optionNode.id = 'youdaoGWZS_options';
		optionNode.style.display = 'none';
		optionNode.innerHTML = optionstr;
		document.documentElement.appendChild(optionNode);
		
		if (optionNode.firstChild) {
			optionNode.firstChild.addEventListener('DOMCharacterDataModified', function(event) {
			var currentValue = event.newValue;
			if(currentValue != GM_getValue('youdaoGWZS_options'))
				GM_setValue('youdaoGWZS_options', currentValue);
			}, false);
		}
	}

	var head = document.getElementsByTagName('head')[0];
	if(!head) return;
	var domscript = document.createElement('script');
	domscript.src = 'http://zhushou.youdao.com/script/extension_2_4.js?browser=chrome&version=2.4';
	domscript.charset = 'utf-8';
	head.appendChild(domscript);

})();

有道购物助手脚本版，支持chrome，解决bug【Update 0.03】！

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