vb也可以做到真实的线程功能，请下载试用-vb thread can be a real feature, please download the trial ...

限定使用次数的例子,对于开发试用版本的windows应用程序有很大的参考价值,-Limited number of examples to use and develop the trial version of Windows application has great reference value,

his project is my trial to make an OCR (Optical Character Re-His project is my trial to make an OCR (Optical Character Re

his project is my trial to make an OCR (Optical Character Re(His project is my trial to make an OCR (Optical Character Re)

有一个理发师，一把理发椅和n把提供给等候理发的顾客座的椅子。如果没有顾客，则理发师便在理发椅子上睡觉；当第一个顾客到来时，必须唤醒该理发师进行理发；如果理发师正在理发时又有顾客到来，则如果有空椅子可坐，他就坐下来等待，如果没有空椅子，他就离开理发店。 为理发师和顾客各编一段程序描述他们的行为，要求不能带有竞争条件，试用P、V操作实现。(There was a barber, a barber's chair and a chair n offered to the customer waiti