標籤：支援 get 瀏覽器 win html can clear order document
<!DOCTYPE html5>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS3-Canvas畫布（圖形-矩形）</title>
<script>
window.onload=function () {
var canvas=document.getElementById("canvas");//擷取canvas對象
var ctx=canvas.getContext("2d"); //建立二維的繪圖內容物件
ctx.rect(50,50,200,200);//定義矩形的邊框
ctx.strokeStyle="red"; //填充邊框（路徑）顏色
ctx.fillStyle="green";//填充邊框顏色
ctx.fill();
ctx.stroke();
ctx.clearRect(60,60,100,50);//擦除矩形地區內的圖形
// ctx.strokeRect(50,50,200,100);//定義無填充的矩形
//
// ctx.fillStyle="red"; //填充矩形顏色
// ctx.fliiRect(50,50,200,100);//定義有填充的矩形
}
</script>
</head>
<body>
<h2>Canvas畫布（圖形）</h2>
<canvas id="canvas" width="500" height="500" style="border:1px solid red ">
瀏覽器不支援canvas
</canvas>
</body>
</html>
CSS3-Canvas畫布（圖形-矩形）
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