日期:2014-05-16  浏览次数:20352 次

以下代码为什么不能成功?用到jquery
<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=GBK"/>
  <title></title>
  <script type="text/javascript" src="jquery-1.8.2.js"></script>
  <script type="text/javascript">
  $(document).ready(function(){
  $("#span1").left("300px");//我想要span1左边离div左边框300px的距离,但实际上span1紧贴div左边框
  //为什么?????
  });
  </script>
</head>
<body>
<div id="div1" style="width: 500px;height: 100px;border: solid black;position: relative;">
  <span id="span1" style="position: relative;">1</span>
</div>
</body>
</html>

------解决方案--------------------
HTML code

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=GBK"/>
  <title></title>
  <script type="text/javascript" src="jquery-1.8.0.js"></script>
  <script type="text/javascript">
  $(document).ready(function(){
      $("#div1").find("span").each(function(){
          $(this).css("left","300px");
      });
  });
  </script>
</head>
<body>
<div id="div1" style="width: 500px;height: 100px;border:1pt solid black;position: relative;">
  <span id="span1" style="position: relative;border:1pt solid black;">1</span>
  <span id="span2" style="position: relative;border:1pt solid black;">2</span>
  <span id="span3" style="position: relative;border:1pt solid black;">3</span>
</div>
</body>
</html>

------解决方案--------------------
HTML code
<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
  <title></title>
   <script type="text/javascript" src="jquery-1.8.2.js"></script>
  <script type="text/javascript">
  $(document).ready(function(){
    $("#span1").css("margin-left","300px");//注意:设置的是 margin-left
  });
  </script>
</head>
<body>
<div id="div1" style="width:500px;height:100px;border:1pt solid black;">
  <span id="span1" style="border:1px solid #bfbfbf;">1</span>
  <span id="span2" style="border:1px solid #bfbfbf;">2</span>
  <span id="span3" style="border:1px solid #bfbfbf;">3</span>
</div>
</body>
</html>