                        課程
                    
                        /前端開發(fā)
                        
                            /Html5
                        
                        /炫麗的倒計時效果Canvas繪圖與動畫基礎(chǔ)

我的七巧板代碼給同學(xué)們作參考不過顏色很丑

<!DOCTYPE?html>
<html>
<head?lang="en">
????<meta?charset="UTF-8">
????<title>Tanzi的七巧板</title>
</head>
<body>
<canvas?id?="canvas"?style="border:?solid?5px?black;?display:block;?margin-top:?150px;margin-left:200px;">
????如果您看到這句話，證明您的瀏覽器不支持canvas
</canvas>
<script>
????var?tangram=[
????{p:[{x:0,y:0},{x:400,y:400},{x:800,y:0}],color:"red"},
????{p:[{x:0,y:0},{x:0,y:800},{x:400,y:400}],color:"blue"},
????{p:[{x:800,y:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:"yellow"},
????{p:[{x:800,y:400},{x:400,y:800},{x:800,y:800}],color:"orange"},
????{p:[{x:400,y:400},{x:600,y:600},{x:600,y:200}],color:"purple"},
????{p:[{x:400,y:400},{x:200,y:600},{x:400,y:800},{x:600,y:600}],color:"green"},
????{p:[{x:200,y:600},{x:0,y:800},{x:400,y:800}],color:"pink"}
]
????window.onload=function(){
????????var?canvas=document.getElementById('canvas');
????????canvas.width=800;
????????canvas.height=800;
????????var?context=canvas.getContext('2d');
????????for(i=0;i<tangram.length;i++)
????????draw(tangram[i],context);
????}

????function?draw(piece,cxt){
?????cxt.beginPath();
????????cxt.moveTo(piece.p[0].x,piece.p[0].y);
????????for(var?i?=1;i<piece.p.length;i++)
????????cxt.lineTo(piece.p[i].x,piece.p[i].y);
?????cxt.closePath();

????cxt.fillStyle=piece.color;
????????cxt.fill();
????}
</script>
</body>
</html>