<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>
RunJS 演示代码
</title>
<script>
var kk=function(txt){
var rs = document.getElementsByName("a1");
for(var i =0;i<rs.length;i++){
var r =rs[i];
if(r.value==txt.value){
r.checked=true;
break;
}
}
}
</script>
</head>
<body>
<input type="input" value="男" onkeyup="kk(this)" >
<input type="radio" name="a1" id="b1" value="男" checked="true">男
<input type="radio" name="a1" id="b1" value="女">女
</body>
</html>
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