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µÚÒ»ÖÖ·½·¨£ºÊ¹ÓÃinsertRowÌí¼ÓÐУ¬Ê¹ÓÃinsertCellÌí¼Óµ¥Ôª¸ñ£¬ÔÙÓÃinnerHTMLÌî³äµ¥Ôª¸ñ¡£Ê¹ÓÃdeleteRowɾ³ýÐУ¬´úÂëÈçÏ£º
Javascript´úÂ룺
function addRow()
  {
     var root = document.getElementById("tbody")
     var allRows = root.getElementsByTagName('tr');
     var allCells = allRows[0].getElementsByTagName('td');
     var newRow = root.insertRow();
     var newCell0 = newRow.insertCell();
     var newCell1 = newRow.insertCell();
     var newCell2 = newRow.insertCell();
     var newCell3 = newRow.insertCell();
     newCell0.innerHTML = allCells[0].innerHTML;
     newCell1.innerHTML = allCells[1].innerHTML;
     newCell2.innerHTML = allCells[2].innerHTML;
     newCell3.innerHTML = allCells[3].innerHTML;
  }
  function removeRow(r)
  {
    var root = r.parentNode;
    root.deleteRow(r);
  }
HTML´úÂ룺
<table>
  <tbody id="tbody">
    <tr>
        <td><select><option>hello</option><option>hi</option></select></td>
        <td><input type="text" value="enter you name here" /></td>
        <td><input type="text" value="text2"/></td>
        <td&g


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<mce:script type="text/javascript"><!--

function openWin(src, width, height, showScroll){
window.showModalDialog (src,"","location:No;status:No;help:No;dialogWidth:"+width+";dialogHeight:"+height+";scroll:"+showScroll+";");
}
// --></mce:script> &n ......

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parseFloat ת»»³É¸¡µãÊý
parseInt ת»»³ÉÕûÊý.
ÕâÁ½¸öº¯Êý¶¼ÓÐЩÈÝ´íÐÔµÄ,±ÈÈç"123abc"»á±ä³É123.
Èç¹ûÂ¥Ö÷Ï£Íû¸ü׼ȷһЩ,Æäʵ¿ÉÒÔÅжÏÒ»ÏÂ,È»ºóÓÃeval,ÏñÕâÑù
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var a = "234" ;
a = a.replace(/(^[\\s]*)|([\\s]*$)/g, "");
if( a !="" && !isNaN( a ) )
{//Èç¹ûÊÇÊý×Ö
a = e ......

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function A(name){
    this.name = name;
    this.sayHello = function(){alert(this.name+” say Hello!”);};
}
function B(name,id){
    this.temp = A;
    this.temp(name);      &nbs ......
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