不能使对象移动。Javascript
不能使对象移动。Javascript
提问于 2016-02-07 17:44:35
为此，我使用了YouTube教程。我不明白为什么它不能工作。由于某种原因，当我按下A或D时什么也没有发生。
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#container{
position: relative;
height: 600px;
width: 400px;
outline: 2px solid black;
}
#character{
position: absolute;
height: 50px;
width: 50px;
outline: 2px solid black;
background-color: #FF6600;
left: 0;
}
</style>
<body onkeydown="anim">
<div id="container">
<div id="character"></div>
</div>
<script>
var container = document.getElemnetById('container');
var character = document.getElemnetById('character');
var characterLeft = 0;
function anim(e){
if (e.keyCode == 97){
characterLeft += 2;
character.style.left = characterLeft + 'px';
}
if (e.keyCode == 100){
characterLeft -= 2;
character.style.left = characterLeft + 'px';
}
}
</script>
</body>
</head>
</html> `
回答 2
Stack Overflow用户
发布于 2016-02-07 17:48:00
使用这个
<div id="pop" onclick="anim();">
<span>click me</span>
<div id="container">
<div id="character">
</div>
</div>
<script>
var container = document.getElemnetById('container');
var character = document.getElemnetById('character');
var characterLeft = 0;
function anim()
{
alert('yes it work!!');
if (e.keyCode == 97){
characterLeft += 2;
character.style.left = characterLeft + 'px';
}
if (e.keyCode == 100){
characterLeft -= 2;
character.style.left = characterLeft + 'px';
}
}
</script>
</div>Stack Overflow用户
发布于 2016-02-07 19:36:33
这是可行的。我还交换了按键效果-按"a“键将框移动到左侧，按"d”键将其移动到右侧。希望这能有所帮助。盖夫
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
#container
{
position: relative;
height: 600px;
width: 400px;
outline: 2px solid black;
}
#character
{
position: absolute;
height: 50px;
width: 50px;
outline: 2px solid black;
background-color: #FF6600;
left: 0;
}
</style>
<body>
<div id="container">
<div id="character"></div>
</div>
<script>
var container = document.getElementById('container');
var character = document.getElementById('character');
var characterLeft = 0;
document.onkeypress = function (e) {
e = e || window.event;
var charCode = e.charCode || e.keyCode;
if (charCode == 97){
characterLeft -= 2;
character.style.left = characterLeft + 'px';
};
if (charCode == 100){
characterLeft += 2;
character.style.left = characterLeft + 'px';
}
}
</script>
</body>
</head>
</html>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/35251937
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