我想知道是否有人可以提供一些见解,为什么当我点击下面的随机表格链接时,它不会随机加载其中一个列出的表格.它适用于jfiddle:
任何帮助将不胜感激.提前致谢.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="http://code.jquery.com/jquery-1.7.2.js" type="text/javascript"></script><!-- This calls the jquery library -->
<script type="text/javascript">
$(document).ready(function() {
$('#randomForm').click(function() {
var forms = $('#forms > form');
forms.hide();
forms.eq(Math.floor(Math.random() * forms.length)).show();
});
});
</script>
<title>Untitled Document</title>
</head>
<body>
<div id="forms">
<form style="display:none;">
This is your training site1
</form>
<form style="display:none;"><!-- the second form -->
This is your training site2
</form>
<form style="display:none;"><!-- the second form -->
This is your training site3
</form>
<form style="display:none;"><!-- the second form -->
This is your training site4
</form>
</div>
<a href="#" id="randomForm">Show random form</a>?
</body>
</html>
问题是您的jquery代码在页面上存在任何表单之前运行.此时,您无法将click事件分配给#randomForm(jQuery将尝试,但由于#randomForm尚不存在,它将不执行任何操作).
使用document.ready处理程序:
<script type="text/javascript">
$(document).ready(function(){
$('#randomForm').click(function() {
var forms = $('#forms > form');
forms.hide();
forms.eq(Math.floor(Math.random() * forms.length)).show();
});?
});?
</script>
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