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<div id="main1" style="color:blue" onclick="document.all.child1.style.display=(document.all.child1.style.display =='none')?'block':'none'" >
+ 主目录1</div>
<div id="child1" style="display:none">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a> <br>
<a href="#">- 子目录4</a>
</div>
<div id="main2" style="color:blue" onclick="document.all.child2.style.display=(document.all.child2.style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head><body>
<div id="main1" style="color:blue" onclick="document.all.child1.style.display=(document.all.child1.style.display =='none')?'block':'none'" >
+ 主目录1</div>
<div id="child1" style="display:none">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a> <br>
<a href="#">- 子目录4</a>
</div>
<div id="main2" style="color:blue" onclick="document.all.child2.style.display=(document.all.child2.style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档 </title>
</head> <body>
<div id="main1" style="color:blue" onclick="document.all.child1.style.display=(child1.style.display =='none')?'block':'none'" >
+ 主目录1 </div>
<div id="child1" style="display:none">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a> <br>
<a href="#">- 子目录4 </a>
</div>
<div id="main2" style="color:blue" onclick="document.all.child2.style.display=(child2.style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档 </title>
</head> <body>
<div id="main1" style="color:blue" onclick="child1.style.display=(child1.style.display =='none')?'block':'none'" >
+ 主目录1 </div>
<div id="child1" style="display:none">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a> <br>
<a href="#">- 子目录4 </a>
</div>
<div id="main2" style="color:blue" onclick="child2.style.display=(child2.style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<div id="main1" style="color:blue" onclick="document.getElementById('child1').style.display=(document.getElementById('child1').style.display =='none')?'block':'none'" >
+ 主目录1</div>
<div id="child1" style="display:none">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a> <br>
<a href="#">- 子目录4</a>
</div>
<div id="main2" style="color:blue" onclick="document.getElementById('child2').style.display=(document.getElementById('child2').style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1</a> <br>
<a href="#">- 子目录2</a> <br>
<a href="#">- 子目录3</a>
</div>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档 </title>
</head> <body>
<div id="main1" style="color:blue" onclick="document.getElementById('child1').style.display=(document.getElementById('child1').style.display =='none')?'block':'none'" >
+ 主目录1 </div>
<div id="child1" style="display:none">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a> <br>
<a href="#">- 子目录4 </a>
</div>
<div id="main2" style="color:blue" onclick="document.getElementById('child2').style.display=(document.getElementById('child2').style.display =='none')?'':'none'" >
+ 主目录2 </div>
<div id="child2" style="display:none; ">
<a href="#">- 子目录1 </a> <br>
<a href="#">- 子目录2 </a> <br>
<a href="#">- 子目录3 </a>
</div>
</body>
</html>