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下面的代碼將顯示與文本字段用戶名後div您選擇下拉是,但它會隱藏div如果你點擊提交,我希望它仍然顯示你點擊提交後感謝div。保留div後顯示一個下拉和按鈕提交
<script type="text/javascript"
window.onload=function(){
document.getElementById('user').addEventListener('change', function() {
var style = this.value == 1 ? 'block' : 'none';
document.getElementById('hidden_div').style.display = style;
});
}
</script>
<form method="post" action="">
Are You Ready:<br>
<select id="user" name="form_select">
<option value="0">No</option>
<option value="1">Yes</option>
</select>
<div id="hidden_div" style="display: none;">
Username: <br>
<input type="text" name="username"><br>
</div>
<br><input type="submit" name="submit" value="submit" />
</form>