标题 "6-5 bezeirCurveTo(),三次贝塞尔曲线" 中的 "bezeirCurveTo" 拼写错误, 应该是 bezierCurveTo
FYI:https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.bezierCurveTo
FYI:https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D.bezierCurveTo
2015-01-03