jQuery Jsonp跨域模拟搜索引擎实例分享-js教程-PHP中文网

jQuery Jsonp跨域模拟搜索引擎实例分享

小云云

发布： 2018-01-06 13:18:13

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1402 人浏览过

本文主要介绍了jQuery Jsonp跨域模拟搜索引擎的相关资料，非常不错，具有参考借鉴价值,需要的朋友可以参考下。希望帮助到大家。

效果还不错就差加上键盘控制了...

代码如下：

<!DOCTYPE html> 
<html> 
  <head> 
    <meta charset="utf-8" /> 
    <title>迷糊网罗</title> 
    <style type="text/css"> 
      * { 
        margin: 0; 
        padding: 0; 
      } 
      form { 
        position: absolute; 
        left: 50%; 
        top: 40%; 
      } 
      form input:nth-child(1) { 
        width: 450px; 
        height: 34px; 
        float: left; 
        font-size: 16px; 
        text-indent: 0.5em; 
        outline: none; 
        box-sizing: border-box; 
      } 
      form input:nth-child(1):focus { 
        border: 1px solid blueviolet; 
      } 
      form input:nth-child(2) { 
        height: 34px; 
        float: left; 
        background: blueviolet; 
        cursor: pointer; 
        width: 80px; 
        letter-spacing: 2px; 
        border: 0; 
        font-size: 14px; 
        line-height: 34px; 
      } 
      #oul { 
        position: absolute; 
        left: 0; 
        top: 34px; 
        background: white; 
        width: 530px; 
        box-shadow: 3px 3px 5px #F3F3F3; 
        border: 1px solid #F3F3F3; 
        box-sizing: border-box; 
        display: none; 
      } 
      #oul li:hover { 
        background: #F3F3F3; 
        cursor: pointer; 
      } 
    </style> 
  </head> 
  <body> 
    <form action="" method="" name="ss"> 
      <input type="" name="ss" id="txt" value="" /> 
      <input type="button" name="ss" id="btn" value="迷糊网罗" /> 
      <ul id="oul"> 
      </ul> 
    </form> 
    <script type="text/javascript"> 
      //https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=&cb=&_=1497256697565 
      //位置调整 习惯就好.. 
      var fm = document.getElementsByTagName(&#39;form&#39;)[0]; 
      var x = fm.offsetWidth; 
      var y = fm.offsetHeight; 
      fm.style.marginLeft = -x / 2 + &#39;px&#39;; 
      fm.style.marginTop = -y / 2 + &#39;px&#39;; 
      //获取操作元素 
      var txt = document.getElementById("txt"); 
      var oul = document.getElementById("oul"); 
      //动态创建js脚本 
      txt.onkeyup = function(ev) { 
        var value = this.value; 
        var newscript = document.createElement("script"); 
        newscript.src = &#39;https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su?wd=&#39; + value + &#39;&cb=walk&_=&#39; + Math.random(); 
        newscript.type = &#39;text/javascript&#39;; 
        document.body.appendChild(newscript); 
      } 
      //设置回调函数 
      function walk(walkJson) { 
        if(txt.value == 0) { 
          oul.style.display = &#39;none&#39;; 
        } else { 
          oul.style.display = &#39;block&#39;; 
          oul.innerHTML = &#39;&#39;; 
          if(walkJson.s.length <= 10) { 
            for(var i = 0; i < walkJson.s.length; i++) { 
              var oli = document.createElement(&#39;li&#39;); 
              oli.style.height = 25 + &#39;px&#39;; 
              oli.style.width = 100 + &#39;%&#39;; 
              oli.style.lineHeight = 25 + &#39;px&#39;; 
              oli.style.textIndent = 9 + &#39;px&#39;; 
              oli.style.listStyle = &#39;none&#39;; 
              oli.innerHTML = walkJson.s[i]; 
              oul.appendChild(oli); 
            } 
          } else { 
            for(var i = 0; i < 10; i++) { 
              var oli = document.createElement(&#39;li&#39;); 
              oli.style.height = 25 + &#39;px&#39;; 
              oli.style.width = 100 + &#39;%&#39;; 
              oli.style.lineHeight = 25 + &#39;px&#39;; 
              oli.style.textIndent = 9 + &#39;px&#39;; 
              oli.style.listStyle = &#39;none&#39;; 
              oli.innerHTML = walkJson.s[i]; 
              oul.appendChild(oli); 
            } 
          } 
        } 
      } 
    </script> 
  </body> 
</html>

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