📄 tutorial4_page6.htm
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<title>Webmonkey: javascript: Thau's JavaScript Tutorial: Day 1</title>
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CONTENT="Thau's JavaScript Tutorial: Day 1: Not only does Thau give the JavaScript skinny, but he'll have you writing your first script by the end of the day.">
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<td WIDTH="58%" VALIGN="MIDDLE"><font FACE="宋体" LANG="ZH-CN" SIZE="4" COLOR="#ff0000"></font><font
FACE="System,黑体" LANG="ZH-CN" SIZE="4" COLOR="#ff0000"><b>第6页：嵌套循环</b></font><font
FACE="System,黑体" LANG="ZH-CN"><br>
<!-- BYLINE --> </font><font FACE="System,黑体" LANG="ZH-CN" SIZE="2">作者：</font><a
HREF="mailto:thau@wired.com"><font FACE="宋体" LANG="ZH-CN" SIZE="2">Thau!</font></a><font
FACE="宋体" LANG="ZH-CN"> <!-- SEE ALSO LINKS --></font></td>
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<p>这是程序：</font></td>
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<td WIDTH="58%" VALIGN="TOP" BGCOLOR="#ffffff"><pre>
var height = prompt("How high do you
want the grid? (1-10 is good)","10");
var width= prompt("How wide do you want
the grid? (1-10 is good)","10");
var a_line;
var new_window =
window.open("/webmonkey/98/04/files1a
/grid.html","looper","width=400,height=400");
new_window.document.writeln("<h1>A Grid</h1>");
for (height_loop = 0; height_loop
< height; height_loop++)
{
a_line = "";
for (width_loop = 0;
width_loop < width; width_loop++)
{
a_line+="x";
}
new_window.document.writeln
(a_line + "<br>");
}
</pre>
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<td WIDTH="58%" VALIGN="MIDDLE" BGCOLOR="#ffffff"><font FACE="System,黑体" LANG="ZH-CN"><p
ALIGN="JUSTIFY">在请求高及宽后，打开一新窗口，并为它写一个头，进入</font><font
FACE="宋体" LANG="ZH-CN">for</font><font FACE="System,黑体" LANG="ZH-CN">循环。第一个</font><font
FACE="宋体" LANG="ZH-CN">for</font><font FACE="System,黑体" LANG="ZH-CN">循环设</font><font
FACE="宋体" LANG="ZH-CN">a_line=</font><font FACE="System,黑体" LANG="ZH-CN">“”。试一下不用该行做一下本例，看看会发生什么。在初始化</font><font
FACE="宋体" LANG="ZH-CN">a_line</font><font FACE="System,黑体" LANG="ZH-CN">后，程序进入下一个</font><font
FACE="宋体" LANG="ZH-CN">for</font><font FACE="System,黑体" LANG="ZH-CN">循环，当宽达到所需值后，建立</font><font
FACE="宋体" LANG="ZH-CN">X`S</font><font FACE="System,黑体" LANG="ZH-CN">行并将它显现在新窗口中。这些将发生</font><font
FACE="宋体" LANG="ZH-CN">height</font><font FACE="System,黑体" LANG="ZH-CN">次。</p>
<p ALIGN="JUSTIFY">好，现在你的任务：看一下这个<a HREF="tutorial4_page7.htm">循环练习</a>并亲自试着在看源码前写一个。</font></td>
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<td WIDTH="58%" VALIGN="TOP" BGCOLOR="#ffffff"><!-- PAGE X LINKS --><!-- this stuff checks if there are more pages in this story. if so, we'll
suck out the titles of those pages and build links. Right now, the maximum is
15 pages. --><!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> <!-- PAGE X LINKS --><!-- this stuff checks if there are more pages in this story. if so, we'll
suck out the titles of those pages and build links. Right now, the maximum is
15 pages. --><font FACE="System,黑体" LANG="ZH-CN">第</font><font
FACE="宋体" LANG="ZH-CN">1</font><font FACE="System,黑体" LANG="ZH-CN">页</font><font
FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a HREF="tutorial4.htm"><font
FACE="System,黑体" LANG="ZH-CN">第四课介绍</font></a><font FACE="System,黑体"
LANG="ZH-CN" SIZE="2"><br>
<!-- PAGE X LINKS --><!-- this stuff checks if there are more pages in this story. if so, we'll
suck out the titles of those pages and build links. Right now, the maximum is 15 pages. --><!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">2</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page2.htm"><font FACE="System,黑体" LANG="ZH-CN">循环介绍</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">3</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page3.htm"><font FACE="System,黑体" LANG="ZH-CN">循环的密码</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">4</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page4.htm"><font FACE="System,黑体" LANG="ZH-CN">再谈</font><font
FACE="宋体" LANG="ZH-CN">WHILE</font><font FACE="System,黑体" LANG="ZH-CN">循环</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">5</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page5.htm"><font FACE="宋体" LANG="ZH-CN">For </font><font
FACE="System,黑体" LANG="ZH-CN">循环</font></a><font FACE="System,黑体" LANG="ZH-CN"
SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">6</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page6.htm"><font FACE="System,黑体" LANG="ZH-CN">嵌套循环</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">7</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page7.htm"><font FACE="System,黑体" LANG="ZH-CN">循环练习</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">8</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page8.htm"><font FACE="System,黑体" LANG="ZH-CN">数组</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">9</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page9.htm"><font FACE="System,黑体" LANG="ZH-CN">数组和循环</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">10</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">:</font><a
HREF="tutorial4_page10.html"><font FACE="System,黑体" LANG="ZH-CN">文件目标模块中的数组</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">11</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page11.htm"><font FACE="System,黑体" LANG="ZH-CN">函数</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">12</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page12.html"><font FACE="System,黑体" LANG="ZH-CN">无参数函数</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">13</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page13.htm"><font FACE="System,黑体" LANG="ZH-CN">参数及返回值</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="System,黑体" LANG="ZH-CN">第</font><font FACE="宋体" LANG="ZH-CN">14</font><font
FACE="System,黑体" LANG="ZH-CN">页</font><font FACE="宋体" LANG="ZH-CN" SIZE="2">: </font><a
HREF="tutorial4_page14.htm"><font FACE="System,黑体" LANG="ZH-CN">多于一个参数的函数</font></a><font
FACE="System,黑体" LANG="ZH-CN" SIZE="2"><br>
<!-- this is a mini-template that formats each pageX link. So, if a story
has 15 pages, we need to generate 15 links to it. This is how each one
will look... --> </font><font FACE="宋体" LANG="ZH-CN" SIZE="2"><p><br>
<!-- AUTHOR TAGLINE --> </font></td>
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<p> </p>
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