目录一、本质区别：操作系统线程 vs 用户态协程1. 操作系统线程（OS Thread）2. Goroutine（协程）二、全方位对比：线程与协程的差异三、调度机制：内核调度器 vs Go调度器操作系统线程调度Goroutine调度（GMP模型）
I have a rectangle of any arbitrary width and height. I 开发者_JAVA技巧know X,Y, width, and height. How do I solve the upper right hand coordinates when the rectangle is rotated N degrees? I realized
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