谁能帮我 看看哪里出错 ，找了好久没见错误
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>canvs的绘图开始</title>
<style>
body{
padding: 10px;
}
.all_bg{
width: 800px;
height: 600px;
margin: 0 auto;
}
#allcanvas{
position: relative;
width: 800px;
height: 600px;
margin: 0px;
}
#canvas1{
position: absolute;
bottom: 0;
left: 0;
z-index: 1;
}
#cancas2{
position: absolute;
bottom: 0;
left: 0;
z-index: 0;
}
</style>
</head>
<body>
<div class="all_bg">
<div id="allcanvas">
<canvas id="canvas1" width="800" height="600"></canvas>
<canvas id="cancas2" width="800" height="600"></canvas>
</div>
</div>
<script type="text/javascript" src="js/commonFunctions.js"></script>
<script type="text/javascript" src="js/main.js"></script>
<script type="text/javascript" src="js/background.js"></script>
<script type="text/javascript" src="js/ane.js"></script>
<script type="text/javascript" src="js/fruit.js"></script>
</body>
</html>
qq_素花之年多余的解释_04264913浏览 1407回答 1
1回答
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qq_素花之年多余的解释_04264913
var can1; var can2; var canWidth; var canHeight; var ctx1; var ctx2; var lastTime; var detaTime; var bgPic= new Image(); document.body.onload = game; var ane; /// hai kui zhong zi var fruit; //果实 function game() { init() gameloop() lastTime = Date.now(); detaTime = 0; } function init(){ //初始化 can1 =document.getElementById('canvas1'); //shang ctx1 =can1.getContext('2d'); can2 =document.getElementById('cancas2'); ///xia ctx2 =can2.getContext('2d'); bgPic.src ="src/background.jpg" canWidth = can1.width; canHeight = can1.height; ane = new aneObj(); ane.init(); console.log("a") fruit = new fruitObj(); fruit.init(); } function gameloop(){ window.requestAnimationFrame(gameloop); var now =Date.now(); detaTime =now-lastTime; lastTime = now; drawBackground(); //bf img ane.draw();////hai kui yinru fruitMonitor(); //海葵 果实的变化 控制 fruit.draw(); }
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JavaScript