📄 updown.htm
字号:
<html>
<head>
<title> - Javascript实例</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" href="../homepage.css">
<script>
if(document.layers)
{
alert("将窗口缩小一些，才可以看到效果！");
}
function drop(n) {
if(self.moveBy){
self.moveBy (0,-900);
for(i = n; i > 0; i--){
self.moveBy(0,3);
}
for(j = 8; j > 0; j--){
self.moveBy(0,j);
self.moveBy(j,0);
self.moveBy(0,-j);
self.moveBy(-j,0);
}
}
}
</script>
</head>
<body bgcolor="#FFFFFF" onLoad="drop(300)">
<script language="Javascript" src="/pub/js/head.js"></script>
<table width="760" height="20" border=0 cellspacing="0" cellpadding="0" align="center">
<tr bgcolor="CFDFFF">
<td height=20 class="p1" align="left"><img src="/pc/img/blank.gif" width="12" height="8"><font color="#000000"><font color="#FF9966">当前位置</font>：<a href="/default.htm" class="under"></a>
-> <a href="/index.htm"class="under">电脑乐园</a> -> JavaScript实例</font></td>
</tr>
</table>
<table width="760" border=0 cellspacing="0" cellpadding="0" align="center">
<tr>
<td width="207" valign="top"><img src="img/bule.gif" width="207" height="13"></td>
<td bgcolor="A8A8AB" width="1"><img src="img/blank.gif" width="1" height="1"></td>
<td align="right" height="22" width=530><img src="img/js.gif" width="186" height="20"></td>
<td width="22"><img src="img/blank.gif" width="1" height="1"></td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td width="124"><img src="img/blank.gif" width="1" height="1"></td>
<td background="img/line.gif" height="27" width=636><img src="img/blank.gif" width="1" height="1"></td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td class=p3 align="center" width=711><b> 窗口从天而降效果</b></td>
<td class="p2" width="1" bgcolor="A8A8AB"><img src="img/blank.gif" width="1" height="1"></td>
<td class="p2" width="48"> </td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td align="center" valign="top"> </td>
<td> </td>
<td bgcolor="5F74BF" width="28" align="center"><img src="img/bule1.gif" width="28" height="49"></td>
<td width="37" align="center"> </td>
</tr>
<tr>
<td align="center" valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td>
<table width="110" border="0" cellspacing="0" cellpadding="0">
<tr bgcolor="5F74BF" align="center">
<td class="p1" align="right"><b><font color="#FFFFFF">效 果 演 示</font></b><font color="#FFFFFF">：</font></td>
<td class="p1" width="11"><img src="img/bule2.gif" width="11" height="18"></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
<td class=p2 align="left" >
<p> </p>
<p><b><font color="#FF6666"> 怎麽样?看到效果了吗?有点气魄吧!</font></b></p>
<p><font color="#FF6666"><b>若没看见,就刷新一下屏幕再看一次吧！</b></font></p>
<p> </p>
</td>
<td bgcolor="5F74BF" width="28" align="center"> </td>
<td width="37" align="center"> </td>
</tr>
<tr>
<td align="center" valign="top">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td height="30"> </td>
</tr>
<tr align="center">
<td>
<table width="110" border="0" cellspacing="0" cellpadding="0">
<tr bgcolor="5F74BF" align="center">
<td class="p1" align="right"><b><font color="#FFFFFF">源代码如下</font></b><font color="#FFFFFF">：</font></td>
<td class="p1" width="11"><img src="img/bule2.gif" width="11" height="18"></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
<td width="457" class="p2" valign="top"><b><br>
<br>
</b><span class="p1"><font color="#6633FF"> </font></span><b><br>
</b>
<form>
<p><span class="p1"><font color="#6633FF">这段程序放在<head>与</head>之间</font></span></p>
<p>
<textarea name="textarea2" onFocus="this.select()" onMouseOver="this.focus()" cols="50" rows="15" wrap="VIRTUAL" style="BACKGROUND-COLOR: #D5E9FD;" ><script>
function drop(n) {
if(self.moveBy){
self.moveBy (0,-900);
for(i = n; i > 0; i--){
self.moveBy(0,3);
}
for(j = 8; j > 0; j--){
self.moveBy(0,j);
self.moveBy(j,0);
self.moveBy(0,-j);
self.moveBy(-j,0);
}
}
}
</script></textarea>
</p>
<p><span class="p1"><font color="#6633FF">这段程序放在<body ****>正文中</font></span></p>
<p>
<textarea name="textarea" onFocus="this.select()" onMouseOver="this.focus()" cols="50" rows="2" wrap="VIRTUAL" style="BACKGROUND-COLOR: #D5E9FD;" >onLoad="drop(300)</textarea>
</p>
</form>
<b><br>
</b></td>
<td bgcolor="5F74BF" width="28" align="center"> </td>
<td width="37" align="center"> </td>
</tr>
<tr>
<td align="center" valign="bottom">
<table width="238" border="0" cellspacing="0" cellpadding="0">
<tr align="center">
<td>
<table width="110" border="0" cellspacing="0" cellpadding="0">
<tr bgcolor="5F74BF" align="center">
<td class="p1" align="right"><b><font color="#FFFFFF">源程序讲解：</font></b></td>
<td class="p1" width="11"><img src="img/bule2.gif" width="11" height="18"></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
<td width="457" class="p2" valign="top"> </td>
<td bgcolor="5F74BF" width="28" align="center"><img src="img/bule1.gif" width="28" height="49"></td>
<td width="37" align="center"> </td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td class="p2" align="right" width="693"> <br>
<table width="650" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<table width="100%" border="1" cellspacing="1" cellpadding="1" bordercolorlight="#666666" bordercolordark="#666666" class=p2>
<tr>
<td width="263">function drop(n) <br>
</td>
<td width="477">定义一个函数，名为drop。</td>
</tr>
<tr bgcolor="CFDFFF">
<td width="263">{ if(self.moveBy)<br>
{ self.moveBy (0,-900);<br>
</td>
<td width="477">如果当前的窗口存在，就移动到相对于当前窗口正上方900像素的地方,moveby函数表示相对位置。</td>
</tr>
<tr>
<td>for(i = n; i > 0; i--)<br>
{ self.moveBy(0,3); } </td>
<td>此例中n=300，每次相对当前窗口向下移动3个像素。</td>
</tr>
<tr bgcolor="CFDFFF">
<td width="263">for(j = 8; j > 0; j--){ <br>
</td>
<td width="477">这是一个循环。</td>
</tr>
<tr>
<td width="263">self.moveBy(0,j);<br>
self.moveBy(j,0);<br>
self.moveBy(0,-j); <br>
self.moveBy(-j,0);</td>
<td width="477">窗口分别向下，左，上，右移动j个像素，产生震动的效果。</td>
</tr>
</table>
</td>
</tr>
</table>
<br>
<br>
</td>
<td class="p2" width="18"> </td>
<td class="p2" width="1" bgcolor="A8A8AB"><img src="img/blank.gif" width="1" height="1"></td>
<td class="p2" width="48"> </td>
</tr>
</table>
<table width="760" border="0" cellspacing="0" cellpadding="0" align="center">
<tr bgcolor="5F74BF">
<td> </td>
</tr>
</table>
<p> </p>
</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 + -