HTML DOM Radio diperiksa properti
Objek radio Definisi dan Penggunaan
diperiksa set properti atau mengembalikan tombol radio dipilih.
tatabahasa
Pengaturan properti diperiksa:
radioObject.checked=true|false
Pengembalian memeriksa atribut:
radioObject.checked
Dukungan Browser
Semua browser utama mendukung properti diperiksa
contoh
contoh
Contoh berikut dari tombol radio dipilih dan tidak dipilih:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<script>
function check(){
document.getElementById("red").checked=true
}
function uncheck(){
document.getElementById("red").checked=false
}
</script>
</head>
<body>
<form>
你更喜欢哪种颜色?<br>
<input type="radio" name="colors" id="red">红色<br>
<input type="radio" name="colors" id="blue">蓝色<br>
<input type="radio" name="colors" id="green">绿色
</form>
<button type="button" onclick="check()">选择 "红色"</button>
<button type="button" onclick="uncheck()">不选择 "红色"</button>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<script>
function check(){
document.getElementById("red").checked=true
}
function uncheck(){
document.getElementById("red").checked=false
}
</script>
</head>
<body>
<form>
你更喜欢哪种颜色?<br>
<input type="radio" name="colors" id="red">红色<br>
<input type="radio" name="colors" id="blue">蓝色<br>
<input type="radio" name="colors" id="green">绿色
</form>
<button type="button" onclick="check()">选择 "红色"</button>
<button type="button" onclick="uncheck()">不选择 "红色"</button>
</body>
</html>
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Objek radio