1.写
<!DOCTYPE html>
<html>
<head>
<title></title>
<script language="javascript" src="jquery.min.js"></script>
</head>
<body>
<form>
<input type="radio" name="sex" value="1">
<input type="radio" name="sex" value="2">
<input type="radio" name="sex" value="3">
</form>
</body>
</html>
2.获取值
<script> $value=$("input[name='sex']:checked").val(); </script>
3.回显
<form> 男<input type="radio" name="sex" value="1" <{if $data.sex=1 }> checked <{/if}>> 女<input type="radio" name="sex" value="2" <{if $data.sex=2 }> checked <{/if}>> 不明<input type="radio" name="sex" value="3" <{if $data.sex=3 }> checked <{/if}>> </form>