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ASP.Net初级学习一（基本语句入门）

2014-11-21 22:10 507 查看

<body >
<form method="post" action="program.ashx">
<input type="hidden"value="true"name="ispostback" />
<!--隐藏字段的作用是判断是否是提交表单进入program.ashx-->
姓名：<input type="text" name="ming"value="@value"/>
<input type="submit" value="提交" />
@msg
</form>
</body>
</html>

public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
string fullpath = context.Server.MapPath("HtmlGetElementByid.html");
string content = File.ReadAllText(fullpath);
string msg = "";
string ispostback=context.Request["ispostback"];
string ming = context.Request["ming"];

if (ispostback=="true")
{
context.Response.Write("提交进入");
msg = ming + "你好";
}
else
{
context.Response.Write("直接进入");
}
content = content.Replace("@value",ming);
content = content.Replace("@msg",msg);
context.Response.Write(content);
context.Response.Write(ming);
}

实现按键值自增

public class IncreaseValue : IHttpHandler
{

public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
string ispostback=context.Request["ispostback"];
string number = context.Request["number"];
if(ispostback=="true")
{
if (number == "@value") number = "0";
int i = Convert.ToInt32(number);
i++;
number = i.ToString();
}
else
{
number = "0";
}
string path = context.Server.MapPath("IncreaseValue.html");
string content = System.IO.File.ReadAllText(path);
content=content.Replace("@value",number);
context.Response.Write(content);
}

<body>
<form action="IncreaseValue.ashx">
<input type="hidden"value="true"name="ispostback" />
<input type="text"value="@value"name="number"/>
<input type="submit"value="自增" />
</form>
</body>

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