📄 ifthen.aspx

📁 asp.net1.1入门经典C＃.2003

💻 ASPX

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<script language="C#" runat="server"> 
void Page_Load()
{ 
  int intNumber, intGuess;
  Random r = new Random();
  intNumber = Convert.ToInt32(r.Next(10)) + 1;

  if (Page.IsPostBack) {
    intGuess = Convert.ToInt32(Guess.SelectedItem.Value);
   
    if (intGuess > intNumber) {
    	 Message.Text = "<BR><BR>Guess is too high<BR>Try again, it was " 
    	 + intNumber;
    }

    if (intGuess < intNumber) {
    	 Message.Text = "<BR><BR>Guess is too low<BR>Try again, it was " 
    	 + intNumber;
    }

    if (intGuess == intNumber) {
    	 Message.Text = "<BR><BR>Guess is correct!";
    }
  }
}
</script>

<html>
<head></head>
<body>
<form runat="server">
  What number am I thinking of?
  <asp:dropdownlist id="Guess" runat="server">
    <asp:listitem>1</asp:listitem>
    <asp:listitem>2</asp:listitem>
    <asp:listitem>3</asp:listitem>
    <asp:listitem>4</asp:listitem>
    <asp:listitem>5</asp:listitem>
    <asp:listitem>6</asp:listitem>
    <asp:listitem>7</asp:listitem>
    <asp:listitem>8</asp:listitem>
    <asp:listitem>9</asp:listitem>
    <asp:listitem>10</asp:listitem>
 </asp:dropdownlist>
  <br>
  <br> 
  <input type="submit" value="Submit guess">
  <asp:label id="Message" runat="server"/>
</form>
</body>
</html>

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