【代码保留】怎样添加一个多选搜索引擎

刚刚明明是在看书的，结果家里来了一群客人JJWW，然后就上线了，然后一个什么都不会但是充满理想和幻想的人正在做着千秋大梦，说是要弄一个很多个搜索引擎的东西（话说几十年前就泛滥了）。……好吧，就友情协助帮忙写一个，现在把代码贴这边！

效果示意：

怎么样，着实很土吧？哈哈！

search_engine_assistant.js文件

1 function search_engine_assistant() {
2     this.create = function(items, textbox, button, redirectFunction) {
3         button.onclick = function() {
4             var ckitems = document.getElementsByName("__opt");
5             for (var i = 0; i < ckitems.length; i++) {
6                 if (ckitems[i].checked) {
7                     var url = ckitems[i].value.replace(ckitems[i].attributes["key"].nodeValue, textbox.value);
8                     if(redirectFunction)
9                         redirectFunction(url);
10                     break;
11                 }
12             }
13         };
14         for (var i = 0; i < items.length; i++) {
15             var item = this.createItem(i, items[i].text, items[i].url, items[i].key, items[i].container, items[i].selected, items[i].selectedCallback);
16         }
17
18     }
19
20     this.createItem = function(id, text, url, key, container, selected, selectedCallback) {
21         var selectedCallbackName = "__search_check_" + id;
22         if (selectedCallback) {
23             document.write("<script type=\"text/javascript\" language=\"javascript\">\nvar " + selectedCallbackName + " = " + selectedCallback.toLocaleString() + ";\n</script>");
24         }
25
26         var item = null;
27         if (container) {
28             var radio = "<input type=\"radio\" id=\"__opt_id\" name=\"__opt\" value=\"" + url + "\" key=\"" + key + "\" {checked} onclick=\"" + selectedCallbackName + "();\">" + text;
29             if (selected)
30                 radio = radio.replace("{checked}", "checked");
31             else
32                 radio = radio.replace("{checked}", "");
33
34             item = new Object();
35             item.body = radio;
36             item.key = key;
37             container.innerHTML += radio;
38         }
39         return item;
40     }
41 }

search.html文件：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
    <title>General Search </title>
    <style type="text/css">
        .search_panel_css
        {
            text-align: center;
            margin-top: 130px;
        }
        .search_logo_css
        {
            margin-bottom: 40px;
        }
        .search_select_css
        {
            font-size:14px;
            font-family:微软雅黑;
            margin-bottom: 20px;
        }
        .search_text_css
        {
            width: 300px;
            height: 26px;
            font-size: 20px;
        }
        .search_button_css
        {
            font-family:微软雅黑;
            margin-top: 20px;
            width:120px;
            height: 26px;
        }
    </style>
</head>
<body>
    <div id="searchPanel" class="search_panel_css">
        <img alt="" id="search_logo" src="images/example.gif" class="search_logo_css" /><br />
        <span id="search_select" class="search_select_css"></span>
        <br />
        <input id="search_text" type="text" class="search_text_css" />
        <input id="search_button" type="button" value="搜    索" class="search_button_css" />
    </div>
</body>

<script language="javascript" type="text/javascript" src="search_engine_assistant.js"></script>

<script language="javascript" type="text/javascript">
    var sea = new search_engine_assistant();
    sea.create([
        {
            text: "本站",
            url: "http://www.example.com/search/q={0}",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: true,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/example.gif";
                document.getElementById("search_button").value = "搜索本站";
            }
        }, {
            text: "百度",
            url: "http://www.baidu.com/s?wd={0}",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: false,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/baidu.gif";
                document.getElementById("search_button").value = "百度一下";
            }
        }, {
            text: "谷歌",
            url: "http://www.google.cn/search?hl=zh-CN&q={0}&btnG=Google+%E6%90%9C%E7%B4%A2&meta=&aq=f&oq=",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: false,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/google.gif";
                document.getElementById("search_button").value = "谷歌更强大";
            }
        }, {
            text: "搜狗",
            url: "http://www.sogou.com/web?query={0}&_asf=www.sogou.com&_ast=1228659410&w=01019900&p=40040100",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: false,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/sogou.gif";
                document.getElementById("search_button").value = "搜狗搜索";
            }
        }, {
            text: "易搜",
            url: "http://www.yisou.com/search:{0}",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: false,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/yisou.gif";
                document.getElementById("search_button").value = "一搜就到";
            }
        }, {
            text: "爱问",
            url: "http://iask.sina.com.cn/search_engine/search_knowledge_engine.php?key={0}&classid=0&title=%B0%A2%CB%B9&gjss=0&x=29&y=12",
            key: "{0}",
            container: document.getElementById("search_select"),
            selected: false,
            selectedCallback: function() {
                document.getElementById("search_logo").src = "images/iask.gif";
                document.getElementById("search_button").value = "爱问才会赢";
            }
        }

],
    document.getElementById("search_text"),
    document.getElementById("search_button"),
    function(url) {
        window.open(url);
    });
</script>

</html>

话说别人家做的都不是这样啦，呵呵，好处应该很明显，改动很微妙而且扩展性好，坏处就是代码多了点，还有浏览器要支持脚本。而且放到站点上，最好加一个escape(textbox.value)，不过也无所谓了，就拿百度Google来说，就这样都把它们攻残了，还混啥呀！

继续看书！

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原文地址：https://www.cnblogs.com/volnet/p/search_engine_assistant.html