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JavaScript method to use FileSystemObject object to write the content of text file_javascript skills
JavaScript method to use FileSystemObject object to write the content of text file_javascript skills
本文实例讲述了JavaScript使用FileSystemObject对象写入文本文件内容的方法。分享给大家供大家参考。具体如下：
这段代码主要是练习JavaScript的FileSystemObject对象，用它来让JavaScript向一个文本文件中写入内容，这个TXT文件的路径你可以自己指定，然后定义好要写入的内容，运行代码，你会发现原来的TXT文本中的内容已改变。
运行效果如下图所示：
具体代码如下：
<html>
<head>
<title>写入文本文件</title>
</head>
<body>
<hr>
<script language="JavaScript">
var ForWriting = 2;
var strFile = "c:\\test.txt";
var objFSO = new ActiveXObject("Scripting.FileSystemObject");
// 检查文件是否存在
if (objFSO.FileExists(strFile)){
// 打开文本文件
var objStream = objFSO.OpenTextFile(strFile,ForWriting,true,false);
// 写入字符串数据
objStream.WriteLine("JavaScript的FileSystemObject对象");
objStream.WriteLine("JavaScript写入文本文件的内容");
document.write("写入文本文件" + strFile + "成功<br>");
objStream.Close(); // 关闭文件
}
else
document.write("文本文件: " + strFile + "不存在<br>");
</script>
</body>
</html>
但是有的情况下浏览器会报错未能创建对象.
F12开发者模式调试时发现：运行至new ActiveXObject这行时，automation服务器未能创建对象。
解决方法：
IE浏览器->工具->Internet选项->安全->自定义级别->设置
->“对未标记为可安全执行脚本的ActiveX控件初始化并执行脚本”设置为启用，确定即可。
注意：
启用此选项只可用于调试本地代码，在访问其它网站前一定记得改过来。
否则恶意脚本将通过IE具有读、写、遍历你本地文件等的全部权限！
希望本文所述对大家的javascript程序设计有所帮助。
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