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javascript - 为什么canvas画图中Math.PI是180度?
Math.PI不是3.14吗,怎么会变成180度?
迷茫
2785 days ago
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I'll reply
巴扎黑
2017-04-11 09:25:17
。。。估计是数学没学好,弧度制PI代表180°
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