canvas应用——中国象棋棋盘@慕课网原创_慕课网

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>CANVAS应用-中国象棋</title>
    <style type="text/css">
        body{margin: 0;padding: 0;}
        #div1{width:620px;height:620px;margin: 0 auto;margin-top: 50px;border: 2px solid #f00;}
        #div2{width:605px;height:120px;margin:0 auto;margin-top:10px;border: 2px solid #ccc;}
    </style>
    <script type="text/javascript">
        function canvas1id(){
            var canvas=document.getElementById("canvas1");
            var hb=canvas.getContext("2d");
            canvas.width=620;canvas.height=620;
            hb.lineWidth=5;
            hb.strokeStyle="#000";
            hb.strokeRect(30,30,560,560);  //外方框
            hb.lineWidth=1;

            for(var i=1;i<9;i++) {
                if (i > 4) {
                    hb.moveTo(30, i * 60 + 50);
                    hb.lineTo(590, i * 60 + 50);
                }
                else {
                    hb.moveTo(30, i * 60+30);
                    hb.lineTo(590, i * 60+30);
                }
            }  //画棋盘横线

            for(var i=1;i<8;i++){
                hb.moveTo(i*70+30,30);hb.lineTo(i*70+30,270);hb.moveTo(i*70+30,350);hb.lineTo(i*70+30,590);
            }  //画棋盘竖线

            hb.moveTo(240,30);hb.lineTo(380,150);hb.moveTo(380,30);hb.lineTo(240,150);
            hb.moveTo(240,590);hb.lineTo(380,470);hb.moveTo(380,590);hb.lineTo(240,470);
            hb.stroke();  //画交叉线

            hb.font = 'bold 60px arial';
            hb.fillText("楚河",80,330);hb.fillText("汉界",420,330);  //写汉字

            canvas2id();

        }

        function canvas2id(){
            var canvas=document.getElementById("canvas2");
            var qh=canvas.getContext("2d");
            canvas.width=605;canvas.height=120;
            qh.lineWidth=1;qh.strokeStyle="#000";
            for(i=0;i<8;i++){
                qh.arc(40+75*i, 60, 35, 0, 360);
                qh.moveTo((i+2)*75,60);
            }
            qh.stroke();
            qh.font='bold 50px arial';
            var qz=["将","仕","相","马","车","炮","兵","兵"];
            for(i=0;i<8;i++){
                qh.fillText(qz[i],15+75*i,75);
            }
            canvas3id();
        }
    </script>
</head>
<body onload="canvas1id()">
<div id="div1"><canvas id="canvas1"></canvas></div>
<div id="div2"><canvas id="canvas2"></canvas></div>
</body>
</html>