<!DOCTYPE html>
<html>
<body>
<b>Q1.</b>
<textarea readonly rows="4" columns="200" id="Q1_Old">Answer to be copied to second textarea</textarea>
<p>If the above answer is unchanged click on "Same Answer" for copying over, else click on "New Answer" to draft new answer</p>
<button onclick="SameAnswer()">Same Answer</button>
<input type="button" onclick="clearText()" value="New Answer">
<p><textarea readonly rows="4" columns="200" id="A1"></textarea>
<script>
function clearText() {
document.getElementById("A1").reset();
}
function SameAnswer() {
var x = document.getElementById("Q1_Old").value;
document.getElementById("A1").innerHTML = x;
}
</script>
</body>
</html>
在上面的代码中，SameAnswer() 函数可以正常工作，但 ClearText() 函数不能正常工作。需要帮助来解决此问题
最佳答案
更改.document.getElementById("A1").reset();到 document.getElementById("A1").value = "";
function clearText() {
document.getElementById("A1").value = "";
}
function SameAnswer() {
var x = document.getElementById("Q1_Old").value;
document.getElementById("A1").innerHTML = x;
}<b>Q1.</b>
<textarea readonly rows="4" columns="200" id="Q1_Old">Answer to be copied to second textarea</textarea>
<p>If the above answer is unchanged click on "Same Answer" for copying over, else click on "New Answer" to draft new answer</p>
<button onclick="SameAnswer()">Same Answer</button>
<input type="button" onclick="clearText()" value="New Answer">
<p><textarea readonly rows="4" columns="200" id="A1"></textarea>关于javascript - 我尝试使用 jscript 从另一个文本区域复制数据后清除文本区域，但无法清除第二个文本区域，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47641742/