打開VS，新建空網站，添加新項命名為Receive.aspx<br>
在后臺的內容為：
?protected void Page_Load(object sender, EventArgs e)
??? {
??????? PerformanceCounter myMeroy = new PerformanceCounter();
??????? myMeroy.CategoryName = "Memory";
??????? myMeroy.CounterName = "Available KBytes";
??????? string txtRelust = "-->可用的內存：" + myMeroy.NextValue().ToString() + "KB";
??????? Response.Write(DateTime.Now.ToLongTimeString()+"?? "+ txtRelust);
??? }
添加一個htm文件，命名為client.htm
?<script type="text/javascript">
???????? var XmlHttp = new ActiveXObject("Microsoft.XMLhttp");
????????
???????? function sendAJAX() {
???????????? XmlHttp.Open("POST", "Receive.aspx", true);
???????????? XmlHttp.send(null);
???????????? XmlHttp.onreadystatechange = ServerProcess;
????????????
???????? }
???????
???????? function ServerProcess() {
???????????? if (XmlHttp.readystate == 4 || XmlHttp.readystate == 'complete') {
???????????????? document.getElementById('div1').innerHTML = XmlHttp.responsetext;
???????????? }
?這樣就會出現一個不斷變化的內存空間

轉載于:https://www.cnblogs.com/xuxiaorong/archive/2012/03/27/2420324.html

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