html之长文本框置顶

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html之长文本框置顶

方法：

在<body>

　</body>中添加如下代码：

<a name="top"></a>

<a href="#top">点我返回顶部</a>

整体示例代码如下：

方法：

在<body>

　</body>中添加如下代码：

<a name="top"></a>

<a href="#top">点我返回顶部</a>

整体示例代码如下：

<html>
<body>

<a name="top"></a>

<script type="text/javascript">
var x = navigator;
document.write("CodeName=" + x.appCodeName);
document.write(" ");
document.write("MinorVersion=" + x.appMinorVersion);
document.write(" ");
document.write("Name=" + x.appName);
document.write(" ");
document.write("Version=" + x.appVersion);
document.write(" ");
document.write("CookieEnabled=" + x.cookieEnabled);
document.write(" ");
document.write("CPUClass=" + x.cpuClass);
document.write(" ");
document.write("OnLine=" + x.onLine);
document.write(" ");
document.write("Platform=" + x.platform);
document.write(" ");
document.write("UA=" + x.userAgent);
document.write(" ");
document.write("BrowserLanguage=" + x.browserLanguage);
document.write(" ");
document.write("SystemLanguage=" + x.systemLanguage);
document.write(" ");
document.write("UserLanguage=" + x.userLanguage);
document.write("CodeName=" + x.appCodeName);
document.write(" ");
document.write("MinorVersion=" + x.appMinorVersion);
document.write(" ");
document.write("Name=" + x.appName);
document.write(" ");
document.write("Version=" + x.appVersion);
document.write(" ");
document.write("CookieEnabled=" + x.cookieEnabled);
document.write(" ");
document.write("CPUClass=" + x.cpuClass);
document.write(" ");
document.write("OnLine=" + x.onLine);
document.write(" ");
document.write("Platform=" + x.platform);
document.write(" ");
document.write("UA=" + x.userAgent);
document.write(" ");
document.write("BrowserLanguage=" + x.browserLanguage);
document.write(" ");
document.write("SystemLanguage=" + x.systemLanguage);
document.write(" ");
document.write("UserLanguage=" + x.userLanguage);
document.write("CodeName=" + x.appCodeName);
document.write(" ");
document.write("MinorVersion=" + x.appMinorVersion);
document.write(" ");
document.write("Name=" + x.appName);
document.write(" ");
document.write("Version=" + x.appVersion);
document.write(" ");
document.write("CookieEnabled=" + x.cookieEnabled);
document.write(" ");
document.write("CPUClass=" + x.cpuClass);
document.write(" ");
document.write("OnLine=" + x.onLine);
document.write(" ");
document.write("Platform=" + x.platform);
document.write(" ");
document.write("UA=" + x.userAgent);
document.write(" ");
document.write("BrowserLanguage=" + x.browserLanguage);
document.write(" ");
document.write("SystemLanguage=" + x.systemLanguage);
document.write(" ");
document.write("UserLanguage=" + x.userLanguage);
document.write("CodeName=" + x.appCodeName);
document.write(" ");
document.write("MinorVersion=" + x.appMinorVersion);
document.write(" ");
document.write("Name=" + x.appName);
document.write(" ");
document.write("Version=" + x.appVersion);
document.write(" ");
document.write("CookieEnabled=" + x.cookieEnabled);
document.write(" ");
document.write("CPUClass=" + x.cpuClass);
document.write(" ");
document.write("OnLine=" + x.onLine);
document.write(" ");
document.write("Platform=" + x.platform);
document.write(" ");
document.write("UA=" + x.userAgent);
document.write(" ");
document.write("BrowserLanguage=" + x.browserLanguage);
document.write(" ");
document.write("SystemLanguage=" + x.systemLanguage);
document.write(" ");
document.write("UserLanguage=" + x.userLanguage);
</script>

<a href="#top">点我返回顶部</a>

</body>
</html>

//部分代码参考w3school

查看全文

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原文地址：https://www.cnblogs.com/yelang-lkg/p/5546802.html