0
如果選擇選項1,應該出現兩個按鈕。如果選擇了選項2,應該出現一個按鈕和一個輸入欄。如果選擇了選項3,則應顯示兩個輸入字段。有了這個代碼,沒有什麼改變。如何使用不同的輸入字段創建動態選擇選項?
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function vidType() {
var s1 = document.getElementById(select1);
if (s1.value == "Video File") {
var btn1 = document.createElement("BUTTON");
var t = document.createTextNode("UPLOAD IMAGE");
btn1.appendChild(t);
var btn2 = document.createElement("BUTTON");
var t2 = document.createTextNode("UPLOAD VIDEO");
btn2.appendChild(t2);
} else if (s1.value == "Youtube Video") {
var btn3 = document.createElement("BUTTON");
var t3 = document.createTextNode("UPLOAD IMAGE");
btn3.appendChild(t3);
var x = document.createElement("INPUT");
x.setAttribute("type", "text");
x.setAttribute("value", "Paste URL here");
document.body.appendChild(x);
} else if (s1.value == "Other Video") {
var y = document.createElement("INPUT");
y.setAttribute("type", "text");
y.setAttribute("value", "Paste URL of the Video");
document.body.appendChild(y);
var z = document.createElement("INPUT");
z.setAttribute("type", "text");
z.setAttribute("value", "Paste thumbnail URL here");
document.body.appendChild(z);
}
}
</script>
</head>
<body>
Choose Video Type:
<select id="select1" name="select1" onchange="vidType()">
<option value="Select Type">Select Video Type</option>
<option value="Video File">Video File</option>
<option value="Youtube Video">Youtube Video</option>
<option value="Other Video">Other Video</option>
</select>
</body>
</html>
如果你打開你的控制檯(F12),你會明白爲什麼它不起作用。 – adeneo
提示:'select1'需要用引號表示...... – adeneo
感謝您指出... –