JavaScript 读取、写入Txt文档

最新推荐文章于 2021-06-30 11:12:43 发布

转载最新推荐文章于 2021-06-30 11:12:43 发布 · 3.9k 阅读

文章标签：

#javascript #button #function #文档

本文介绍了如何使用JavaScript创建、读取和写入文本文件的基本方法，包括创建文本文件对象、写入数据和读取文件内容。

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<html>
<head>
<title>JS操作文本文件</title>
</head>
<body>

<script>
var arr = new Array();
arr[0] = [0,"name0","value0"];
arr[1] = [1,"name1","value1"];
arr[2] = [2,"name2","value2"];
arr[3] = [3,"name3","value3"];
arr[4] = [4,"name4","value4"];
function Write2Text()
{
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f = fso.CreateTextFile("a.txt", true);
for(var i=0;i<arr.length;i++)
{
f.write(arr[i])
f.WriteBlankLines(1)
}
f.Close();
}
</script>
<input type=button value="Write" onclick="Write2Text()">

<script>
function GetHeader(src) { 
var ForReading=1; 
var fso=new ActiveXObject("Scripting.FileSystemObject"); 
var f=fso.OpenTextFile(src,ForReading); 
return(f.ReadAll()); 
} 
function ReadText(){
var arr=GetHeader("a.txt").split("\r\n");
for(var i=0;i<arr.length;i++){
alert("第"+(i+1)+"行数据为:"+arr[i]);
}
}
</script>

<input type=button value="Read" onclick="ReadText()">

</body>
</html>

http://school.cnd8.com/javascript/jiaocheng/49932.htm