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绘制一个球 根据公式x^2+y^2+z^2=R^2; 令x=RsinAcosB y=RcosAcosB z=RsinB using System; using System.Collections.Generic; using System.ComponentModel; using System. 阅读全文
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const 与 readonly知多少 Practical Difference between Const & ReadOnly What is the difference between const and readonly? Apart from the apparent differenc 阅读全文
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.net中的线程池ThreadPool还有和数据库交互的连接池,比如SQL Server Connection Pooling (ADO.NET)https://msdn.microsoft.com/en-us/library/8xx3tyca.aspxSQL Server Connection P... 阅读全文
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Object pool patternTheobject pool patternis a softwarecreational design patternthat uses a set of initializedobjectskept ready to use – a "pool" – rat... 阅读全文
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TeeChart曲线的X轴是时间,但是频率很高。没法完全显示。例如,一秒钟有2000个点,那么点与点的间隔为0.5毫秒。使用TChart类的GetAxisLabel事件,函数手册上对此事件的解释:An Event is triggered for each Axis Label painted. T... 阅读全文