On pressing the second 'Add Task' button, a textbox should be added to the second div, similary with 3rd, 4th 如何引用特定的div元素？无论下面按下哪个按钮，我在下面所做的操作都会将文本框添加到第一个div。
HTML
<body>
<div id="project">
LIST IT
</div>
<div id="board">
Java Project
</div>
<template id="listTemp">
<form class="frm" >
<input type="text" placeholder="Enter list name">
</form>
<button type="button" name="task" class="lst btn btn-secondary" onclick="addTask()">Add Task</button>
</template>
<button type="button" name="list" class="btn btn-secondary" onclick="addList()">Add List</button>
</body>
<script src="index.js" charset="utf-8"></script>
JAVASCRIPT
function addTask(){
var input = document.createElement('input');
input.placeholder="Enter task here";
input.type="text";
var br = document.createElement('br');
var parent = document.getElementsByClassName('frm')[0];
// parent.insertBefore(input,document.getElementsByClassName('lst')[0]);
parent.appendChild(input);
}
function addList(){
var div = document.createElement('div');
div.innerHTML = document.getElementById('listTemp').innerHTML;
div.className = 'ListBox';
document.getElementsByTagName('body')[0].appendChild(div);
}
要引用div＃project，您可以使用document.querySelector（'＃project'）;