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HTML坦克大战学习01

<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head>    <title></title></head><body>    <canvas id="tankMap" width="400px" height="300px" style="background-color: black"></canvas>    <script type="text/javascript">        var heroX = 130;        var heroY = 130;        //得到画布        var canvas1 = document.getElementById("tankMap");        //取得画布画笔对象        var cxt = canvas1.getContext("2d");        //画出坦克        cxt.fillStyle = "#DED284";        //画出左面        cxt.fillRect(heroX, heroY, 5, 30);        //画出右边        cxt.fillRect(heroX + 15, heroY, 5, 30);        //中间矩形        cxt.fillRect(heroX + 6, heroY + 5, 8, 20);        //画出坦克的盖子        cxt.fillStyle = "#FFD972";        cxt.arc(heroX + 10, heroY + 15, 4, 0, 360, true);        cxt.fill();        //车出炮线        cxt.strokeStyle = "#FFD972";        cxt.lineWidth = 1.5;        cxt.beginPath();        cxt.moveTo(heroX + 10, heroY + 15);        cxt.lineTo(heroX + 10, heroY);        cxt.closePath();        cxt.stroke();    </script></body></html>

//效果图如下