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+var example = {};
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+
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+example.rotate = function (context) {
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+ context.beginPath();
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+ context.rotate(10*Math.PI/180);
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+ context.rect(225, 75, 20, 10);
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+ context.setFillStyle('#108ee9');
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+ context.fill();
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+};
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+
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+example.scale = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.rect(25, 25, 50, 50);
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+ context.stroke();
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+
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+ context.scale(2,2);
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+
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+ context.beginPath();
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+ context.rect(25, 25, 50, 50);
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+ context.stroke();
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+};
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+
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+
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+example.reset = function (context) {
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+ context.beginPath();
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+
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+ context.setFillStyle('#108ee9');
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+ context.setStrokeStyle('#108ee9');
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+ context.setFontSize(10);
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+
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+ context.setShadow(0, 0, 0, 'rgba(0, 0, 0, 0)');
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+
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+ context.setLineCap('butt');
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+ context.setLineJoin('miter');
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+ context.setLineWidth(1);
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+ context.setMiterLimit(10);
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+};
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+
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+example.translate = function (context) {
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+ context.beginPath();
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+ context.setFillStyle('#108ee9');
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+ context.rect(10, 10, 100, 50);
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+ context.fill();
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+
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+ context.translate(70, 70);
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+
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+ context.beginPath();
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+ context.fill();
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+};
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+
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+example.save = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.save();
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+
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+ context.scale(2, 2);
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+ context.setStrokeStyle('#108ee9');
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+ context.rect(0, 0, 100, 100);
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+ context.stroke();
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+ context.restore();
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+
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+ context.rect(0, 0, 50, 50);
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+ context.stroke();
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+};
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+
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+example.restore = function (context) {
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+ [3, 2, 1].forEach(function (item) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.save();
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+ context.scale(item, item);
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+ context.rect(10, 10, 100, 100);
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+ context.stroke();
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+ context.restore();
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+ });
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+
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+};
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+
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+example.drawImage = function (context) {
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+ context.drawImage('/image/api.png', 0, 0);
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+};
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+
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+example.fillText = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(0, 10);
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+ context.lineTo(300, 10);
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+ context.stroke();
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+
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+ // context.save();
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+ // context.scale(1.5, 1.5);
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+ // context.translate(20, 20);
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+ context.setFontSize(10);
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+ context.fillText('Hello Alipay', 0, 30);
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+ context.setFontSize(20);
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+ context.fillText('Hello Alipay', 200, 30);
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+
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+ // context.restore();
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+
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+ context.beginPath();
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+ context.moveTo(0, 30);
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+ context.lineTo(300, 30);
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+ context.stroke();
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+};
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+
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+example.fill = function (context) {
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+ context.beginPath();
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+ context.setFillStyle('#108ee9');
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+ context.rect(20, 20, 150, 100);
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+ context.fill();
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+};
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+
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+example.stroke = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(20, 20);
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+ context.lineTo(20, 100);
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+ context.lineTo(70, 100);
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+
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+ context.stroke();
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+};
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+
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+example.clearRect = function (context) {
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+ context.beginPath();
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+ context.setFillStyle('#108ee9');
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+ context.rect(0, 0, 300, 150);
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+ context.fill();
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+ context.clearRect(20, 20, 100, 50);
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+};
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+
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+example.beginPath = function (context) {
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+ context.beginPath();
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+ context.setLineWidth(5);
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(0, 75);
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+ context.lineTo(250, 75);
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+ context.stroke();
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+
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(50, 0);
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+ context.lineTo(150, 130);
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+ context.stroke();
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+};
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+
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+example.closePath = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(20, 20);
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+ context.lineTo(20, 100);
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+ context.lineTo(70, 100);
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+ context.closePath();
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+ context.stroke();
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+};
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+
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+example.moveTo = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(0, 0);
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+ context.lineTo(300, 150);
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+ context.stroke();
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+};
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+
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+example.lineTo = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(20,20);
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+ context.lineTo(20,100);
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+ context.lineTo(70,100);
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+ context.stroke();
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+};
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+
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+example.rect = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.rect(20, 20, 150, 100);
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+ context.stroke();
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+};
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+
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+example.arc = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.arc(75,75,50,0,Math.PI*2,true);
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+ context.moveTo(110,75);
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+ context.arc(75,75,35,0,Math.PI,false);
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+ context.moveTo(65,65);
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+ context.arc(60,65,5,0,Math.PI*2,true);
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+ context.moveTo(95,65);
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+ context.arc(90,65,5,0,Math.PI*2,true);
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+ context.stroke();
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+};
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+
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+example.quadraticCurveTo = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(20, 20);
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+ context.quadraticCurveTo(20, 100, 200, 20);
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+ context.stroke();
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+};
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+
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+example.bezierCurveTo = function (context) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.moveTo(20, 20);
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+ context.bezierCurveTo(20, 100, 200, 100, 200, 20);
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+ context.stroke();
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+};
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+
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+example.setFillStyle = function (context) {
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+ ['rgb(183, 218, 243)', 'rgb(39, 156, 240)', 'rgb(67, 168, 240)', 'rgb(119, 194, 247)'].forEach(function (item, index) {
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+ context.setFillStyle(item);
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+ context.beginPath();
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+ context.rect(0 + 75*index, 0, 50, 50);
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+ context.fill();
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+ });
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+};
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+
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+example.setStrokeStyle = function (context) {
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+ ['rgb(183, 218, 243)', 'rgb(39, 156, 240)', 'rgb(67, 168, 240)', 'rgb(119, 194, 247)'].forEach(function (item, index) {
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+ context.setStrokeStyle(item);
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+ context.beginPath();
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+ context.rect(0 + 75*index, 0, 50, 50);
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+ context.stroke();
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+ });
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+};
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+
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+example.setGlobalAlpha = function (context) {
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+ context.setFillStyle('#108ee9');
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+ [1, 0.5, 0.1].forEach(function (item, index) {
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+ context.setGlobalAlpha(item)
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+ context.beginPath();
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+ context.rect(0 + 75*index, 0, 50, 50);
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+ context.fill();
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+ });
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+}
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+
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+example.setShadow = function (context) {
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+ context.beginPath();
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+ context.setFillStyle('#108ee9');
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+ context.setShadow(10, 10, 10, 'rgb(183, 218, 243)');
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+ context.rect(10, 10, 100, 100);
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+ context.fill();
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+};
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+
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+example.setFontSize = function (context) {
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+ [10, 20, 30, 40].forEach(function (item, index) {
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+ context.setFontSize(item);
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+ context.fillText('Hello, world', 20, 20 + 40*index);
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+ })
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+};
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+
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+example.setLineCap = function (context) {
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+ context.setLineWidth(10);
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+ ['butt', 'round', 'square'].forEach(function (item, index) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.setLineCap(item);
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+ context.moveTo(20, 20 + 20*index);
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+ context.lineTo(100, 20 + 20*index);
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+ context.stroke();
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+ });
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+};
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+
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+example.setLineJoin = function (context) {
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+ context.setLineWidth(10);
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+ ['bevel', 'round', 'miter'].forEach(function (item, index) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.setLineJoin(item);
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+ context.moveTo(20 + 80*index, 20);
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+ context.lineTo(100 + 80*index, 50);
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+ context.lineTo(20 + 80*index, 100);
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+ context.stroke();
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+ });
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+};
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+
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+example.setLineWidth = function (context) {
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+ [2, 4, 6, 8, 10].forEach(function (item, index) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.setLineWidth(item);
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+ context.moveTo(20, 20 + 20*index);
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+ context.lineTo(100, 20 + 20*index);
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+ context.stroke();
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+ });
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+};
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+
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+example.setMiterLimit = function (context) {
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+ context.setLineWidth(4);
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+
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+ [2, 4, 6, 8, 10].forEach(function (item, index) {
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+ context.beginPath();
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+ context.setStrokeStyle('#108ee9');
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+ context.setMiterLimit(item);
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+ context.moveTo(20 + 80*index, 20);
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+ context.lineTo(100 + 80*index, 50);
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+ context.lineTo(20 + 80*index, 100);
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+ context.stroke();
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+ });
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+};
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+
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+export default example
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