<html>
<head>
<title>jquery表格操作</title>
<script language="javascript" src="jquery.table.tr.js"></script>
</head>
<body>
<a href="#" onclick="add_line();">添加一行</a>
<a href="#" onclick="remove_line();">删除一行</a>
<a href="#" onclick="up_exchange_line();">上移</a>
<a href="#" onclick="down_exchange_line();">下移</a>
<a href="#" onclick="top_exchange_line();">置顶</a>
<a href="#" onclick="hou_exchange_line();">置底</a>
<table>
<tr><td>序号</td><td>步骤名称</td><td>步骤描述</td><td>相关操作</td></tr>
</table>
<table id="content">
</table>
</body>
</html>
<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+"' onclick='lineclick(this);'><td>"+max_line_num+"</td><td>打开网页"+max_line_num+"</td><td>打开登录网页"+max_line_num+"</td><td>删除 编辑</td></tr>");
}
function remove_line(){
if(currentStep==0){
alert('请选择一项!');
return false;
}
$("#content tr").each(
function(){
var seq=parseInt($(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 top_exchange_line(){
if(currentStep==0){
alert('请选择一项!');
return false;
}
if(currentStep<=1){
alert('非法操作!');
return false;
}
var topStep = 1;
//修改序号
$('#line'+topStep+" td:first-child").html(currentStep);
$('#line'+currentStep+" td:first-child").html(topStep);
//取得两行的内容
var topContent=$('#line'+topStep).html();
var currentContent=$('#line'+currentStep).html();
$('#line'+topStep).html(currentContent);
//交换当前行与首行内容
$('#line'+currentStep).html(topContent);
$('#content tr').each(function(){$(this).css("background-color","#ffffff");});
$('#line'+topStep).css("background-color","yellow");
currentStep=topStep;
}
function hou_exchange_line(){
if(currentStep==0){
alert('请选择一项!');
return false;
}
if(currentStep>=max_line_num){
alert('非法操作!');
return false;
}
var nextStep=max_line_num;
//修改序号
$('#line'+nextStep+" td:first-child").html(currentStep);
$('#line'+currentStep+" td:first-child").html(nextStep);
//取得两行的内容
var nextContent=$('#line'+nextStep).html();
var currentContent=$('#line'+currentStep).html();
$('#line'+nextStep).html(currentContent);
//交换当前行与尾行内容
$('#line'+currentStep).html(nextContent);
$('#content tr').each(function(){$(this).css("background-color","#ffffff");});
$('#line'+nextStep).css("background-color","yellow");
currentStep=nextStep;
}
function up_exchange_line(){
if(currentStep==0){
alert('请选择一项!');
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);
$('#line'+currentStep+" td:first-child").html(upStep);
//取得两行的内容
var upContent=$('#line'+upStep).html();
var currentContent=$('#line'+currentStep).html();
$('#line'+upStep).html(currentContent);
//交换当前行与上一行内容
$('#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('请选择一项!');
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);
$('#line'+currentStep+" td:first-child").html(nextStep);
//取得两行的内容
var nextContent=$('#line'+nextStep).html();
var currentContent=$('#line'+currentStep).html();
$('#line'+nextStep).html(currentContent);
//交换当前行与上一行内容
$('#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;
}
</script>