效果图：拖动表格里任何一个位置，都可以左右拖动表格宽度，上下宽度一起改变
特点：拖动容易，文字不会被线盖住
代码：
Html代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script language="javascript">
var colnum=0;
var begin_x;
var begin_y;
var drag_flag = false;
document.onmousedown = mouseDragBegin
document.onmousemove = mouseDrag
document.onmouseup = mouseDragEnd
function setDrag(col){
drag_flag = true;
colcolnum = col;
}
function mouseDragBegin(){
if(drag_flag==true){
begin_x = event.x;
begin_y = event.y;
}
}
function mouseDrag(){
if(drag_flag==true){
if (window.event.button == 1){
var now_x = event.x;
var now_y = event.y;
if(colnum==0){
var value = ColRight1[0].style.pixelWidth + now_x - begin_x;
for(var i=0;i<ColRight1.length;i++){
ColRight1[i].style.pixelWidth = value;
}
if (ColRight1[0].style.pixelWidth <=10){
for (var i=0;i<ColRight1.length;i++){
ColRight1[i].style.pixelWidth = 10;
}
}
begin_x = now_x;
}else if(colnum==1){
var value = ColRight2[0].style.pixelWidth + now_x - begin_x;
for(var i=0;i<ColRight1.length;i++){
ColRight2[i].style.pixelWidth = value;
}
if (ColRight2[0].style.pixelWidth <=10){
for (var i=0;i<ColRight2.length;i++){
ColRight2[i].style.pixelWidth = 10;
}
}
begin_x = now_x;
}else if(colnum==2){
var value = ColRight3[0].style.pixelWidth + now_x - begin_x;
for(var i=0;i<ColRight1.length;i++){
ColRight3[i].style.pixelWidth = value;
}
if (ColRight3[0].style.pixelWidth <=10){
for (var i=0;i<ColRight3.length;i++){
ColRight3[i].style.pixelWidth = 10;
}
}
begin_x = now_x;
}else if(colnum==3){
var value = ColRight4[0].style.pixelWidth + now_x - begin_x;
for(var i=0;i<ColRight1.length;i++){
ColRight4[i].style.pixelWidth = value;
}
if (ColRight4[0].style.pixelWidth <=10){
for (var i=0;i<ColRight4.length;i++){
ColRight4[i].style.pixelWidth = 10;
}
}
begin_x = now_x;
}
}
}
}
function mouseDragEnd(){
drag_flag=false;
}
//-->
</script>
</HEAD>
<BODY>
<TABLE ID="tblTitle" BORDER=0 cellspacing =0 cellpadding =0 STYLE="border-collapse:collapse;">
<tr height = 30>
<td class="tdTitle"><DIV ID=ColRight1 style="width:100px; background-color:red" unselectable="on" onMouseDown="setDrag(0)">000</DIV></td>
<td class="tdTitle"><DIV ID=ColRight2 style="width:100px; background-color:green" unselectable="on" onMouseDown="setDrag(1)" ;>111</DIV></td>
<td class="tdTitle"><DIV ID=ColRight3 style="width:120px; background-color:red" unselectable="on" onMouseDown="setDrag(2)">222</DIV></td>
<td class="tdTitle"><DIV ID=ColRight4 style="width: 50px; background-color:green" unselectable="on" onMouseDown="setDrag(3)">333</DIV></td>
</tr>
<tr height = 30>
<td class="tdTitle"><DIV ID=ColRight1 style="width:100px; background-color:red" unselectable="on" onMouseDown="setDrag(0)">000</DIV></td>
<td class="tdTitle"><DIV ID=ColRight2 style="width:100px; background-color:green" unselectable="on" onMouseDown="setDrag(1)">111</DIV></td>
<td class="tdTitle"><DIV ID=ColRight3 style="width:120px; background-color:red" unselectable="on" onMouseDown="setDrag(2)">222</DIV></td>
<td class="tdTitle"><DIV ID=ColRight4 style="width: 50px; background-color:green" unselectable="on" onMouseDown="setDrag(3)">333</DIV></td>
</tr>
</TABLE>
</BODY>
</HTML>
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