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jQuery Jsonp跨域模拟搜索引擎

程序员文章站 2022-06-24 16:59:11
效果还不错 就差加上键盘控制了... 代码如下: ...

效果还不错 就差加上键盘控制了...

jQuery Jsonp跨域模拟搜索引擎

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('form')[0]; 
      var x = fm.offsetwidth; 
      var y = fm.offsetheight; 
      fm.style.marginleft = -x / 2 + 'px'; 
      fm.style.margintop = -y / 2 + 'px'; 
      //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 = 'https://sp0.baidu.com/5a1fazu8aa54nxgko9wtanf6hhy/su?wd=' + value + '&cb=walk&_=' + math.random(); 
        newscript.type = 'text/javascript'; 
        document.body.appendchild(newscript); 
      } 
      //设置回调函数 
      function walk(walkjson) { 
        if(txt.value == 0) { 
          oul.style.display = 'none'; 
        } else { 
          oul.style.display = 'block'; 
          oul.innerhtml = ''; 
          if(walkjson.s.length <= 10) { 
            for(var i = 0; i < walkjson.s.length; i++) { 
              var oli = document.createelement('li'); 
              oli.style.height = 25 + 'px'; 
              oli.style.width = 100 + '%'; 
              oli.style.lineheight = 25 + 'px'; 
              oli.style.textindent = 9 + 'px'; 
              oli.style.liststyle = 'none'; 
              oli.innerhtml = walkjson.s[i]; 
              oul.appendchild(oli); 
            } 
          } else { 
            for(var i = 0; i < 10; i++) { 
              var oli = document.createelement('li'); 
              oli.style.height = 25 + 'px'; 
              oli.style.width = 100 + '%'; 
              oli.style.lineheight = 25 + 'px'; 
              oli.style.textindent = 9 + 'px'; 
              oli.style.liststyle = 'none'; 
              oli.innerhtml = walkjson.s[i]; 
              oul.appendchild(oli); 
            } 
          } 
        } 
      } 
    </script> 
  </body> 
</html> 

以上所述是小编给大家介绍的jquery jsonp跨域模拟搜索引擎的实例代码,希望对大家有所帮助