求大佬，这段js代码为什么总是报错?谢谢！

Question

求大佬，这段js代码为什么总是报错?谢谢！

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112

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代码如下，

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>搜索引擎</title>
    <link rel="shortcut icon" href="http://pics.sc.chinaz.com/Files/pic/icons128/5897/s10.png">
    <style type="text/css">
        body {font-family:Times New Roman;}
    </style>
    <meta content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" name="viewport">
</head>

<body>
<script type="text/javascript">

    function OK(){
        
        var a2=document.getElementById("txt").value
        var select = document.getElementById("SY");
        var a1 = select.value;
        
        if(a1=="kong"){
            alert("请选择搜索引擎!")
        }else{
            if(a2==""){
                alert("输入不能为空!")
            }else{
            if(a1=="sifou"){
                    window.location.href="https://segmentfault.com/search?q="+a2;
                };
                
                if(a1=="baidu"){
                    window.location.href="https://m.baidu.com/s?word="+a2+"&sa=tb&ts=7978174&t_kt=0&ie=utf-8&rsv_t=a1ef7Jkd73uV5HDTgthKojY11QDJ8M5HvZrtEBwRerNj87%252FpfDPf&rsv_pq=7910245644746614226&sugid=17809295863005949865&ss=110&rqlang=zh&rsv_sug4=4507&inputT=3437&oq="+a2;
                };
                
                if(a1=="zuowen"){
                    window.location.href="http://s.99zuowen.com/cse/search?s=16033497922828948127&q="+a2;
                };
                
                if(a1=="360"){
                    window.location.href="https://m.so.com/s?q="+a2+"&src=msearch_next_input&sug_pos=&sug=&nlpv=&srcg=home_next";
                };
                
                if(a1=="bing){
                    window.location.href="https://cn.bing.com/search?q="+a2+"&qs=n&form=QBLH&sp=-1&pq="+a2+"&sc=0-10&sk=&cvid=7EBC9A3D952E40F282B9ECC4C840A835";
                };
                
                if(a1=="sougou"){
                    window.location.href="https://m.sogou.com/web/searchList.jsp?s_from=pcsearch&keyword="+a2;
                };
            }
        };
    };

</script>


<h2 align="center">搜索引擎</h2>

<fieldset>
    <legend>Setting select</legend>
        <p>选择搜索引擎:</p>
        <select id="SY">
        <option value="kong">请选择:</option>
        <option value="sifou">思否</option>
        <option value="baidu">百度</option>
        <option value="zuowen">99作文网</option>
        <option value="360">360搜索</option>
        <option value="bing">微软必应</option>
        <option value="sougou">搜狗搜索</option>
        </select>
</fieldset>
<p>搜索:</p>
<input id="txt" style="width:85%;" type="text"></input>

<Button type="Button" style="width:10%;"onclick="OK()">GO</Button>

</body>
</html>

javascript

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linong

29.2k1266135

发布于
2020-03-21