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jquery表格增加删除行操作

<html>
<head>
<title>jQuery表格操作添加行、删除行和動态移動丨芯晴網頁特效丨CsrCode.Cn</title>
<script language="javascript" src="js/jquery.js"></script>
</head>
<body>
<a href="#" target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  οnclick="add_line();">添加一行</a>  <a href="#" target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  οnclick="remove_line();">删除一行</a>  <a href="#" target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  οnclick="up_exchange_line()">上移</a>  <a href="#" target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  target="_blank" rel="external nofollow"  οnclick="down_exchange_line()">下移</a>
<table>
<tr><td>序号</td><td>步驟名稱</td><td>步驟描述</td><td>相關操作</td></tr>
</table>
<table id="content">
</table>
<script language="javascript">
var currentStep=0;
var max_line_num=0;
function add_line(){
  max_line_num=$("#content tr:last-child").children("td").html();
  if(max_line_num==null) {
    max_line_num=1;
  }
  else{
    max_line_num=parseInt(max_line_num);
 max_line_num+=1;
  }
  $('#content').append("<tr id='line"+max_line_num+"' οnclick='lineclick(this);'><td>"+max_line_num+"</td><td>打開網頁"+max_line_num+"</td><td>打開登入網頁"+max_line_num+"</td><td>删除  編輯</td></tr>");
}
function remove_line(){  
  $("#content tr").each(
    function(){
   var seq=parseInt($(this).children("td").html());
   if(seq==currentStep) $(this).remove();
   if(seq>currentStep) $(this).children("td").each(function(i){if(i==0)$(this).html(seq-1);});
 }
  );
  currentStep=0;
}
function up_exchange_line(){ 
  if(currentStep==0){
    alert('請選擇一項!');
 return false;
  }
  if(currentStep<=1){
     alert('非法操作!');
  return false;
  }
  var upStep=currentStep-1;
  //修改序号
  $('#line'+upStep+" td:first-child").html(currentStep);
  $('#line'+currentStep+" td:first-child").html(upStep);
  //取得兩行的内容
  var upContent=$('#line'+upStep).html();
  var currentContent=$('#line'+currentStep).html();
  $('#line'+upStep).html(currentContent);
  //交換目前行與上一行内容
  $('#line'+currentStep).html(upContent);  
  $('#content tr').each(function(){$(this).css("background-color","#ffffff");});
  $('#line'+upStep).css("background-color","yellow"); 
  currentStep=upStep;
}
function down_exchange_line(){
 if(currentStep==0){
    alert('請選擇一項!');
 return false;
 }
 if(currentStep>=max_line_num){
     alert('非法操作!');
  return false;
  }
  var nextStep=parseInt(currentStep)+1;
  //修改序号
  $('#line'+nextStep+" td:first-child").html(currentStep);
  $('#line'+currentStep+" td:first-child").html(nextStep);
  //取得兩行的内容
  var nextContent=$('#line'+nextStep).html();
  var currentContent=$('#line'+currentStep).html();
  $('#line'+nextStep).html(currentContent);
  //交換目前行與上一行内容
  $('#line'+currentStep).html(nextContent);  
  $('#content tr').each(function(){$(this).css("background-color","#ffffff");});
  $('#line'+nextStep).css("background-color","yellow"); 
  currentStep=nextStep;
}
function lineclick(line){
   $('#content tr').each(function(){$(this).css("background-color","#ffffff");});
   var seq=$(line).children("td").html();
   $(line).css("background-color","yellow");
   currentStep=seq;
}
$(document).ready(function(){
	$('p').dbclick(function(){
		alert("dbclick");
	});
});
</script>
<p>kdkdkdd</p>
</body>
</html>

<br>如果不顯示預覽效果,請先重新整理本頁面<br><hr><p align="center"><font color=black>本特效由 <a href="http://www.CsrCode.cn" target="_blank" rel="external nofollow"  target="_blank">芯晴網頁特效</a>丨CsrCode.Cn 收集于網際網路,隻為興趣與學習交流,不作商業用途。</font></p>

           

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