我正在玩弄 JavaScript。我在调整页面大小和动态创建元素的位置时遇到问题。 Parent div 是相对定位的，附加的子元素相对于它们添加到的父元素是绝对的。当我缩小浏览器窗口时，父级可以正常缩放，但子级的位置不会更新。在现实世界中，你会如何处理这样的情况？ 谢谢 PS:请记住，我正在努力学习这一点，而且很多我确定是错误的或不必要的。我也感谢您的更正。
<html>
<head>
<!-- <link rel="stylesheet" type="text/css" href="1.css"> -->
<script language="javascript"></script>
<style>
#div1{
postion:relative;
margin:auto auto;
height:400px;
width:400px;
background-color: black;
}
</style>
</head>
<body>
<!-- Goal; -->
<!-- I want a js class that will create itself and manage its own properties
So when I click on the div I fire up a new object button. -->
<div>
<label id = "lblID"></label>
<div id="div1"></div>
</div>
<script>
document.getElementById("div1").addEventListener("click", createchild, false);
function createchild(e)
{
obj1 = new child(this,e);
}
function child(el,e)
{
this.parent = el;
this.parentID = el.id;
// Create the object
this.child = document.createElement('div');
this.parent.appendChild(this.child);
// Set some attributes
var c = this.parent.childElementCount + 1;
this.child.id = "child"+c;
// Set some style
var l = e.clientX - 20;
var t = e.clientY - 20;
var stylestring = "position:absolute;top:"+t+"px;left:"+l+"px;height:40px;width:40px;background-color:red;";
this.child.style.cssText = stylestring;
// Add some eventhandling
this.child.addEventListener("click",getchildcoords,false);
}
function getchildcoords(e)
{
alert(this.id);
e.stopPropagation();
}
</script>
</body>
</html>最佳答案
- #div1 css 的 'position' 关键字中缺少 'i'
- 将新的 div 附加到容器本身以链接它们的位置
- 使用 offsetX、offsetY 进行正确放置
<html>
<head>
<!-- <link rel="stylesheet" type="text/css" href="1.css"> -->
<script language="javascript"></script>
<style>
#div1{
position:relative;
margin:auto auto;
height:400px;
width:400px;
background-color: black;
}
</style>
</head>
<body>
<!-- Goal; -->
<!-- I want a js class that will create itself and manage its own properties
So when I click on the div I fire up a new object button. -->
<div>
<label id = "lblID"></label>
<div id="div1"></div>
</div>
<script>
document.getElementById("div1").addEventListener("click", createchild, false);
function createchild(e)
{
obj1 = new child(this,e);
}
function child(el,e)
{
this.parent = el;
this.parentID = el.id;
// Create the object
this.child = document.createElement('div');
// Set some attributes
var c = this.parent.childElementCount + 1;
this.child.id = "child"+c;
// Set some style
var l = e.offsetX - 20;
var t = e.offsetY - 20;
var stylestring = "position:absolute;top:"+t+"px;left:"+l+"px;height:40px;width:40px;background-color:red;";
this.child.style.cssText = stylestring;
el.appendChild(this.child);
// Add some eventhandling
this.child.addEventListener("click",getchildcoords,false);
}
function getchildcoords(e)
{
alert(this.id);
e.stopPropagation();
}
</script>
</body>
</html>关于javascript - 动态添加的具有绝对定位的元素不会随父元素一起流动，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42214320/