Tracking routing the sample code, very good. Hope everyone has to help

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计算用运算符后缀法表示的表达式的值。后缀表达式也称逆波兰表达式，比中缀表达式计算起来更方便简单些，中缀表达式要计算就存在着括号的匹配问题，所以在计算表达式值时一般都是先转换成后缀表达式，再用后缀法计算表达式的值。如：表达式(a+b*c)/d-e用后缀法表示应为abc*+d/e-。只考虑四则算术运算，且假设输入的操作数均为1位十进制数（0―9），并且输入的后缀形式表达式不含语法错误-calculated Operators suffix France said the value of the expression. Suffix expression also called inverse Poland expression, which is made up of formulas can be more convenient for some simple, ordinary expression to calculate the brackets on the existence of the matching problem, in the calculation of expression values are generally first converted into a suffix expression, reuse suffix calculated the value of the expression. Such as : The expression (a, b* c)/d-e suffix method used to be said for abc* d/e-. Consider only four arithmetic operations and the operation of input assumptions are a few decimal (0-9), and enter the suffix-free form expression syntax errors

操作系统实现的同步:消费著，生产者。以及其他系统同步的程序。 -The operating system to achieve synchronization: consumer, producers. As well as other system synchronization process.

线程池的管理，实现了多线程，是windows下的多线程软件，做成了类模块，方便移植。-Thread pool management, realize the multi-threaded, is under the windows of the multi-threaded software, create a class module to facilitate the transplant.

这是一个通过USB ID来检测USB设备是否存在的工具

获得系统内回收站的资源，并可以操作-Recycling within the system resources and can operate

判断磁盘簇大小CodeGuru Determining Cluster Size-Determine the disk cluster size CodeGuru Determining Cluster Size

西门子 s7300 plc 密码通过mmc卡 读取程序 含源代码 ，演示物理硬盘扇区的读取与修改， 郑重声明，下载此程序请遵守以下原则，否则请不要下载 。本程序仅用于研究 请勿用于非法用途，一切后果由使用者自行承担 ，请勿转载。 -Siemens s7300 plc password mmc card reader program with source code, demonstration of physical hard disk sector read and modify, solemnly declare that to download this program, please comply with the following principles, or else please do not download. This procedure used to study not only used for illegal purposes, all the consequences borne by the user on its own, please do not reprint.

stnpepak 源码及程序 Stone 实现了对Import Table的处理,Win32ASM源码。 -stnpepak source Stone and procedures to achieve the right Import Table handling Win32ASM source.

读写智能读卡器的调用windows自带的动态库来读取卡信息，通过调用winscard.dll里面的SCardEstablishContext函数，SCardReleaseContext函数，SCardTransmit函数来实现读卡。