| 編程（Programming）是編定程序的中文簡稱，就是讓計算機代碼解決某個問題，對某個計算體系規定一定的運算方式，使計算體系按照該計算方式運行，并最終得到相應結果的過程。為了使計算機能夠理解（understand）人的意圖，人類就必須將需解決的問題的思路、方法和手段通過計算機能夠理解的形式告訴計算機，使得計算機能夠根據人的指令一步一步去工作，完成某種特定的任務。這種人和計算體系之間交流的過程就是編程。 【實例名稱】 彈出窗口生成器的JS代碼怎么寫 【實例描述】 IE中彈出窗口有很多方法，最常用的是“window．open”方法。本例制作一個自動生成彈出窗口代碼的工具。 【實例代碼】 <HTML>
<HEAD>
<title>彈出窗口生成器-本站（www.xue51.com）</title>
<STYLE type="text/css">
<!--
BODY {font-family:"宋體";; font-size: 9pt; margin-top: 0px}
.pt9 { font-family: "宋體"; font-size: 9pt}
td { font-size: 9pt }
-->
</STYLE>
<script Language="JavaScript">
function popup(url, name, width, height)
{
settings=
"toolbar=yes,location=yes,directories=yes,"+
"status=no,menubar=no,scrollbars=yes,"+
"resizable=yes,width="+width+",height="+height;
MyNewWindow=window.open(""+url,name,settings);
}
function testmywindow()
{
result=new Array(7);
for (i=1; i<=7; i++){result[i]="no"};
with (document.detectform)
{
if (R1[0].checked) {result[1]="yes"};
if (R2[0].checked) {result[2]="yes"};
if (R3[0].checked) {result[3]="yes"};
if (R4[0].checked) {result[4]="yes"};
if (R5[0].checked) {result[5]="yes"};
if (R6[0].checked) {result[6]="yes"};
if (R7[0].checked) {result[7]="yes"};
settings="toolbar="+result[1]+",location="+result[2]+",
directories="+result[3]+",status="+result[4]+",
menubar="+result[5]+",scrollbars="+result[6]+",
resizable="+result[7]+",width="+newwidth.value+",
height="+newheight.value;
code.value="\<a href=\"#\" onClick=\"MyWindow=
window.open(\'"+url.value+"\',\'MyWindow\',\'"+settings+"\')\;\">
這里是打開窗口的代碼</a>";
}
}
</script>
</HEAD> <BODY leftmargin=0 topmargin=0 marginwidth="5"
marginheight="0" bgcolor="#FFFFFF" link="#000000" vlink="#000000">
<p> </p>
<div align="center"></div>
<div align="center"></div>
<table align="CENTER" width="362">
<tr valign="top">
<td height="610">
<h1 align="center"> <font color="#C40000"
face="Arial">彈出窗口生成器</font>
</h1>
<form name="detectform">
<div align="center">
<center>
<table border="1" width="323">
<tr>
<td bgcolor="#C0C0C0" colspan="2">
<div align="center">
<center>
打開哪個窗口？
</center>
</div>
</td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4" colspan="2">
<div align="center">
<center>
<font color="#000000"><strong>
<p>
<input
type="text" name="url" size="30"
value="http://www.google.com">
</strong></font>
</center>
</div>
</td>
</tr>
<tr align="center">
<td bgcolor="#C0C0C0" colspan="2">
<div align="center">
<center>
<p>窗口設置參數
</center>
</div>
</td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">toolbar
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V15" name="R1"
checked>
| no
<input type="radio" name="R1" value="V16">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">location
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V17" name="R2"
checked>
| no
<input type="radio" name="R2" value="V18">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">directories
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V19" name="R3"
checked>
| no
<input type="radio" name="R3" value="V20">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">status
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V21" name="R4"
checked>
| no
<input type="radio" name="R4" value="V22">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">menubar
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V23" name="R5"
checked>
| no
<input type="radio" name="R5" value="V24">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">scrollbars
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V25" name="R6"
checked>
| no
<input type="radio" name="R6" value="V26">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">resizable
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">yes
<input type="radio" value="V27" checked
name="R7">
| no
<input type="radio" name="R7" value="V28">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">width
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">
<input type="text" name="newwidth" size="3"
value="600">
</font></td>
</tr>
<tr align="center">
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">height
= </font></td>
<td bgcolor="#E4E4E4"><font color="#000000"
face="Arial, Helvetica, sans-serif">
<input type="text" name="newheight" size="3"
value="300">
</font></td>
</tr>
<tr align="center">
<td colspan="2" bgcolor="#C0C0C0">
<div align="center">
<center>
<p><font color="#FFFFFF">
<input
type="button" value="生成代碼" name="B1"
onClick="testmywindow()" class="pt9">
<br>
<input type="reset" value="清除重寫"
name="B2" class="pt9">
</font>
</center>
</div>
</td>
</tr>
</table>
<div align="center">這里是生成的代碼：<br>
</div>
</center>
</div>
<div align="center">
<center>
<p>
<textarea rows="8" name="code" cols="50"
wrap="VIRTUAL" class="pt9"></textarea>
</p>
</center>
</div>
</form>
</td>
</tr>
</table>
</HTML>
【運行效果】  【難點剖析】 本例的重點在于“window．open”方法到底有多少個參數，這些參數通過“yes/no”來開關，具體參數的意義可參考body中的按鈕文本。 【源碼下載】 為了JS代碼的準確性，請點擊：彈出窗口生成器 進行本實例源碼下載
使用編程語言寫的程序，由于每條指令都對應計算機一個特定的基本動作，所以程序占用內存少、執行效率高。
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