MySQL8版本grant報錯:ERROR 1410 (42000)
阿新 • • 發佈:2020-12-28
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=1200, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<ul id = "books">
<li>Java</li>
<li>Python</li>
</ul>
<input type="Text" id="bookName" />
<button id = "btnAdd">+</button>
<button id = "btnDel">-</button>
<script>
const books = document.querySelector("#books");
const bookName = document.querySelector("#bookName");
const btnAdd = document.querySelector("#btnAdd");
const btnDel = document.querySelector("#btnDel");
const addBooks = () => {
const oElement = document.createElement('li');
const oText = document.createTextNode(bookName.value);
oElement.appendChild(oText);
books.appendChild(oElement);
bookName.value = '';
}
const delBooks = () => {
books.removeChild(books.lastElementChild);
}
btnAdd.addEventListener("click",addBooks);
btnDel.addEventListener("click",delBooks);
</script>
</body>
</html>