梅花雪，过来救命啊~！~！~！

是可以
首先，你必须设置你的浏览器的internet选项－安全－自定义级别里的允许框架操作。
下面是aspx的例子，完全没有问题。例外，框架里面的文件必须结构完整。aspx的例子
z.aspx
========
<iframe name="xx" src="c.aspx?a=%253A"></iframe>
<input type="text" onclick="window.frames['xx'].document.open();window.frames['xx'].document.writeln('aa');">
c.aspx
===========
<%@ Page Language="C#" AutoEventWireup="True" %>
<html>
<head>
   <script runat="server">
      void Button1_Click(object Source, EventArgs e) 
      {
         if (RadioButtonList1.SelectedIndex > -1) 
         {  
            Label1.Text = "You selected: " +
                          RadioButtonList1.SelectedItem.Text;
         }
      }
      void chkLayout_CheckedChanged(Object sender, EventArgs e) 
      {
        
         if (chkLayout.Checked == true) 
         {
            RadioButtonList1.RepeatLayout = RepeatLayout.Table;
         }
         else 
         {
            RadioButtonList1.RepeatLayout = RepeatLayout.Flow;
         }     
      }
      void chkDirection_CheckedChanged(Object sender, EventArgs e) 
      {
         if (chkDirection.Checked == true) 
         {
            RadioButtonList1.RepeatDirection = RepeatDirection.Horizontal;
         }
         else 
         {
            RadioButtonList1.RepeatDirection = RepeatDirection.Vertical;
         }  
      }
   </script>
</head>
<body>
   <form runat="server">
      <h3>RadioButtonList Example</h3>
      <asp:RadioButtonList id=RadioButtonList1 runat="server">
         <asp:ListItem>Item 1</asp:ListItem>
         <asp:ListItem>Item 2</asp:ListItem>
         <asp:ListItem>Item 3</asp:ListItem>
         <asp:ListItem>Item 4</asp:ListItem>
         <asp:ListItem>Item 5</asp:ListItem>
         <asp:ListItem>Item 6</asp:ListItem>
      </asp:RadioButtonList>
      <p>
      <asp:CheckBox id="chkLayout"
           OnCheckedChanged="chkLayout_CheckedChanged" 
           Text="Display Table Layout" 
           Checked=true AutoPostBack="true" 
           runat="server"/>
      <br>
      <asp:CheckBox id="chkDirection"
           OnCheckedChanged="chkDirection_CheckedChanged" 
           Text="Display Horizontally" 
           AutoPostBack="true" 
           runat="server"/>
      <p>
      <asp:Button id="Button1" 
           Text="Submit" 
           OnClick="Button1_Click" 
           runat="server"/>
      <p>
      <asp:Label id="Label1" 
           Font-Name="Verdana" 
           Font-Size="8pt" 
           runat="server"/>
   </form>
</body>
</html>