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並前往https://lavrton.com/hit-region-detection-for-html5-canvas-and-how-to-listen-to-click-events-on-canvas-shapes-815034d7e9f8/

Hit Region Detection For HTML5 Canvas And How To Listen ...

forEach(circle => { ctx.beginPath(); ctx.arc(circle.x, circle.y, circle.radius, 0, 2 * Math.PI, false); ctx.fillStyle = circle.color ...

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