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新的JavaScript和採取大學課程的遊戲編程。只使用記事本。現在我必須移動一個對象,在這種情況下,從左到右只是字母「o」。我的教授提供了對象在屏幕上上下的代碼,所以我試圖用「左」切換「上」,但它仍然不會移動。必須在Javascript中從左向右移動變量。教授已經上傳和下載樣本
教授樣本:
<!-- Microsoft Edge, IE10/11, FireFox, Chrome -->
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var bH = document.documentElement.clientHeight; // return the browser’s height
function init() {
var m1 = document.getElementById("m1"); // m1 represent m1
var y = parseInt(m1.style.top); // y-coordinate of m1
if (y >= bH) {
y = 0;
} else {
y++;
}
m1.style.top = y + "px";
s1 = setTimeout("init()", 10); // wait 10 milliseconds and then call init
}
window.onload = function() {
init(); // onload event occurs right after a page is loaded
}
</script>
</head>
<body>
<span id="m1" style="position: absolute; top: 0px">o</span>
</body>
</html>
我的嘗試:用;
<!-- Chrome -->
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var bW = document.documentElement.clientWidth;
function init() {
var o = document.getElementById("o");
var x = parseInt(o.style.left);
if (x >= bW) {
x = 0;
} else {
x++;
}
o.style.left = x + "px";
s1 = setTimeout("init()", 10);
}
window.onload = function() {
init();
}
</script>
</head>
<body>
<span id="o" style="position: absolute; left: 0px">o</span>
</body>
</html>
刪除','在結束'window.onload = function(); '。 – prasanth
好吧刪除它 – SukiTheDog