

<html>
<body>

<form method="post" action="demo_aspnet_radiobutton.aspx" id="ctl00">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTcxOTI5ODU2OGQYAQUeX19Db250cm9sc1JlcXVpcmVQb3N0QmFja0tleV9fFgUFA3JlZAUFZ3JlZW4FBWdyZWVuBQRibHVlBQRibHVl6pLC+26JVNmMrdh6sexDXvgvqbhi6NpDetHib2sAa+c=" />

<input type="hidden" name="__VIEWSTATEGENERATOR" id="__VIEWSTATEGENERATOR" value="B01F4A99" />
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEdAAXi6iP1hZjUOKo6iOnDmKvdcbzW1VezwHIX2avVADAySq+w9GT8QX3rBoaAKxI26XClS6X8jNJHupezC2udF8v08U64O7P3hu9FCADqHdzsavXuwMmgS9susyEfsjflKT68GcLf+W/I7u1AOi4CQJKN" />
请选择您喜欢的颜色：
<br />
<input id="red" type="radio" name="colors" value="red" checked="checked" /><label for="red">Red</label>
<br />
<input id="green" type="radio" name="colors" value="green" /><label for="green">Green</label>
<br />
<input id="blue" type="radio" name="colors" value="blue" /><label for="blue">Blue</label>
<br />
<input type="submit" name="ctl01" value="提交" />
<p><span id="Label1"></span></p>
</form>

</body>
</html>