📄 day4_14.html
字号:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312-80">
<style type="text/css">
<!--
a:link { color: blue; text-decoration: none}
a:visited { color: purple; text-decoration: none}
a:hover { color: #CC0033; text-decoration: underline}
-->
</style>
<title>JavaScript教程</title>
</head>
<body topmargin="1" leftmargin="2">
<table border="0" width="591" cellspacing="0">
<tr>
<td bgcolor="#ffff99" width="451">JavaScript教程 - 第四课</td>
</tr>
<tr>
<td bgcolor="#FF6600" width="451"><a href="mailto:thau@wired.com">Thau</a></td>
</tr>
</table>
<div align="left">
<table border="0" width="630" cellspacing="0">
<tr>
<td width="458" valign="top" align="left"><strong><small><small><br>
</small></small><font face="宋体" size="3">第十四页：</font><font SIZE="3">多于一个参数的函数</font></strong>
<p><font face="宋体" size="3">这是我定义的一个数组：</font> <ul>
<pre><font face="宋体">
var monkeys = new Array("mattmarg","wendy",
"kristin","tim","aaron", "luke");
var kittyphile = new Array("wendy", "ruby",
"roscoe", "tim");
var discophile = new Array("mattmarg",
"john travolta", "wendy");
var happy = new Array("tim", "wendy",
"stimpy", "aaron");
var cranky = new Array("ren", "mattmarg","luke");
</font></pre>
</ul>
<p> </p>
<p><font face="宋体" size="3">随着这些数组的定义，arrayIntersect函数给出，我们可轻<br>
而易举的发现那些网猴酷爱迪斯科：爱跳舞的网猴</font></p>
<p><font face="宋体" size="3">注意到尽管John Travolta喜爱迪斯科，但他不在monkeys请<br>
单中，则他就不是只爱跳舞的网猴为调用该函数值，可这么来：</font>
<ul>
<pre><font face="宋体">
<a href="#" onClick="arrayIntersect('dancing
monkeys',monkeys,discophile);">dancing monkeys</a>
</font></pre>
</ul>
<p> </p>
<p><font face="宋体" size="3">这是个具有3个参数的函数：一个代表交叉的姓名，第一个数组，<br>
及第二个数组。这也很容易发现爱猫的网猴名爱猫的网猴。</font></p>
<p><font face="宋体" size="3">看一下源码：</font> <ul>
<pre><font face="宋体">
<a href="#" onClick="arrayIntersect('monkeys who love
cats',monkeys,kittyphile);">cat-loving monkeys</a>
</font></pre>
</ul>
<p><font face="宋体" size="3">让我们看看arrayIntersect函数本身：</font> <ul>
<pre><font face="宋体">
function arrayIntersect(intersect_name, array_1, array_2)
{
var the_list = "";
for (loop_1 = 0; loop_1 < array_1.length; loop_1++)
{
for (loop_2 = 0; loop_2 < array_2.length; loop_2++)
{
if (array_1[loop_1] == array_2[loop_2])
{
the_list = the_list + array_1[loop_1] + " ";
}
}
}
alert("the " + intersect_name + " are: "+ the_list);
}
</font></pre>
</ul>
<p><font face="宋体" size="3">看看你是否已经弄懂本例中的循环。关键是函数第一行：</font>
<ul>
<pre><font face="宋体">
function arrayIntersect(intersect_name, array_1, array_2)
</font></pre>
</ul>
<p><font face="宋体" size="3">这里定义了一个叫arrayIntersect的函数，它有3个参数。就象上<br>
例，每个参数就象一个变量，当函数调用时赋值。因此，当函数被调<br>
用时：</font> <ul>
<pre><font face="宋体">
arrayIntersect('dancing monkeys',monkeys,discophile);
</font></pre>
</ul>
<p> </p>
<p><font face="宋体" size="3">下列分配：</font> <font size="2"><ul>
<li><font face="宋体">intersect_name = 'dancing monkeys' </font></li>
<li><font face="宋体">array_1 = monkeys </font></li>
<li><font face="宋体">array_2 = discophile </font></font></li>
</ul>
<p><font face="宋体" size="3">唯一需注意的是，你必须以正确的参数数目来调用函数。如果你一旦<br>
象这样调用arrayIntersect：</font> <ul>
<pre><font face="宋体">
arrayIntersect(monkeys,discophile);
</font></pre>
</ul>
<p> </p>
<font SIZE="3"><p ALIGN="JUSTIFY">将会出错。试一下看会发生什么错误。</p>
<p ALIGN="JUSTIFY">在任一标准的<font face="宋体">Javascript</font>程序中，函数都是基本的部件。因此理解其<br>
工作原理极其重要。这里是一个测试你对这项工作理解多少的练习。<br>
再综合地做一下本课中其它练习，再在你自己的浏览器中应用。</p>
</font><p align="left"><font face="宋体" size="3" color="#000000"><strong>JavaScript教程</strong></font><font
color="#FF0000" face="宋体" size="3"><br>
</font><font size="3" color="#FF0000">第一页</font><font size="2" face="宋体"> </font><a
href="day4_14.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_14.html"><font SIZE="3">第四课介绍</font></a><font size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第二页</font> <a href="day4_2.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_2.html">循环介绍</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第三页</font> <a href="day4_3.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_3.html">循环的密码</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第四页</font> <a href="day4_4.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_4.html">再谈<font
face="宋体">WHILE</font>循环</a></font><font size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第五页</font> <a href="day4_5.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_5.html">For循环</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第六页</font> <a href="day4_6.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_6.html">嵌套循环</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第七页</font> <a href="day4_7.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_7.html">循环练习</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第八页</font> <a href="day4_8.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_8.html">数组</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第九页</font> <a href="day4_9.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_9.html">数组和循环</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第十页</font> <a href="day4_10.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_10.html">文件目标模块中的数组</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第十一页</font> <a href="day4_11.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_11.html">函数</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第十二页</font> <a href="day4_12.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_12.html">无参数函数</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第十三页</font> <a href="day4_13.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day4_13.html">参数及返回值</a></font><font
size="2"><br>
</font><font SIZE="3"><font color="#FF0000">第十四页</font>
多于一个参数的函数</font></p>
<p align="left"><font face="宋体" size="3">[<a href="index.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/index.html">第1课</a>][<a
href="day2_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day2_1.html">第2课</a>][<a href="day3_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day3_1.html">第3课</a>][第4课][<a
href="day5_1.html" tppabs="http://www.pchome.net/ch/tur/pstext/teacher/javascript/day5_1.html">第5课</a>]</font></p>
<hr align="left">
<p><font size="2">本文由<a href="javascript:if(confirm('http://chd.126.com/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://chd.126.com/'" tppabs="http://chd.126.com/" target="_blank">《</font><font
face="verdana, arial, geneva, sans-serif" size="2">CHD</font><font size="2">的网络教室》</a>根据<a
href="javascript:if(confirm('http://www.webmonkey.com.cn/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.webmonkey.com.cn/'" tppabs="http://www.webmonkey.com.cn/" target="_blank">《网猴》</a>相关文章改编，版权归<a
href="javascript:if(confirm('http://www.webmonkey.com.cn/ \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.webmonkey.com.cn/'" tppabs="http://www.webmonkey.com.cn/" target="_blank">《网猴》</a>所有</font></td>
</tr>
</table>
</div>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -