Asp.net中对象使用的实例

王朝asp·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

<%@ Page Language="c#" runat="server" %>

<script runat="server">

void Page_Load()

{

pi.Text = Math.PI.ToString();

exp.Text = Math.E.ToString();

}

void Update(object sender, EventArgs e)

{

try

{

double dblInput = Convert.ToDouble(input.Text);

sqrt_input.Text = dblInput.ToString();

sqrt_result.Text = Math.Sqrt(dblInput).ToString();

abs_input.Text = dblInput.ToString();

abs_result.Text = Math.Abs(dblInput).ToString();

log_input.Text = dblInput.ToString();

log_result.Text = Math.Log10(dblInput).ToString();

} catch {

sqrt_result.Text = "";

abs_result.Text = "";

log_result.Text = "";

errormessage.Text = "Error occurred in input";

}

}

</script>

<html>

<head>

</head>

<body>

<hr />

Pi = <asp:Label id="pi" runat="server"></asp:Label>

<br />

Exponential Constant = <asp:Label id="exp" runat="server"></asp:Label>

<hr />

<form runat="server">

Input =

<asp:textbox id="input" runat="server"></asp:textbox>

<asp:button id="Button1" onclick="Update" runat="server" text="Submit"></asp:button>

</form>

<hr />

Square root of <asp:Label id="sqrt_input" runat="server"></asp:Label>= <asp:Label id="sqrt_result" runat="server"></asp:Label>

<br />

Absolute Value of <asp:Label id="abs_input" runat="server"></asp:Label>= <asp:Label id="abs_result" runat="server"></asp:Label>

<br />

Logarithm of <asp:Label id="log_input" runat="server"></asp:Label>= <asp:Label id="log_result" runat="server"></asp:Label>

<br />

<asp:Label id="errormessage" runat="server"></asp:Label>

<br />

</body>

</html>

 
 
 
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