-----042-History.html-----
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>标题</title>
</head>
<body>
<script type="text/javascript">
document.write("共有历史记录条数：" + history.length);
</script>
<button onclick="history.back()">后退</button>
<button onclick="history.forward()">前进</button><br/>
<input type="text" name="txt">
<button onclick="history.go(txt.value)">跳转到</button>
<!-- 只有IE Opera支持 -->
</body>
</html>
