实例说明：
<!DOCTYPE html>
<html>
<%
dim cars
cars=Request.Form("cars")
%>
<body>
<form action="demo_radiob.asp method="post">
<p>Please select your favorite car:</p>
<input type="radio" name="cars"
<%if cars="Volvo" then Response.Write("checked")%>
value="Volvo">Volvo</input>
<br>
<input type="radio" name="cars"
<%if cars="Saab" then Response.Write("checked")%>
value="Saab">Saab</input>
<br>
<input type="radio" name="cars"
<%if cars="BMW" then Response.Write("checked")%>
value="BMW">BMW</input>
<br><br>
<input type="submit" value="Submit" />
</form>
<%
if cars<>"" then
Response.Write("<p>Your favorite car is: " & cars & "</p>")
end if
%>
</body>
</html>标签含义：
使用单选按钮的表单，本例演示如何使用 Request.Form 命令通过单选按钮与用户进行交互。
源代码运行结果如下：
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标签：asp
