用html 和 Js写一个控制页面,控制单片机小灯同时也能收集单片机发送到pc机上的温度。(单片机用的是 430)
html 代码:<html>
<head>
<title></title>
<script type=text/javascript src="8.js">
</script>
</head>
<body>
<form actioon=""><input name="text"type="text"maxlength="16"size="5"value="" id = "la">
<form actioon=""><input name="b1"type="button" id="cl"value="获取温度" onclick = "readFile()">
</form>
<input type="text" id="in" name="in" />
<input type="button" value="Write!" onclick="writeFile('G:/12.txt',document.getElementById('in').value);"/>
</body>
</html>
JS ://读文件
function readFile(form){
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f=fso.OpenTextFile("a.txt",1);
//var s = "";
while (!f.AtEndOfStream){
s = f.Readline();
var b = document.getElementById("la");
b.value = s; }
f.Close();
//form.text.value="212";
//alert("read1");
}
//写文件
function writeFile(filename,filecontent){
var fso, f, s ;
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.OpenTextFile(filename,8,true);
f.WriteLine(filecontent);
f.Close();
alert('ok');
}
关于Js 读写文件的 一些博客地址:http://blog.csdn.net/generalfu/article/details/7936214
http://m.blog.csdn.net/viciousDear/article/details/47947233