多重回滚操作的实现

程序首先创建生产者，然后创建消费者，他们从共享数据结构存取数据，使用互斥信号量，可以有效保护共享数据。-Process begins to create producers, consumers and then create them from the shared data structure to access data, the use of mutex semaphores, shared data can be effectively protected.

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非递归创建二叉树.并且用非递归算法实现对二叉树的前序、中序、后序和广度遍历。 实现语言:C-Create a binary tree non-recursive. And the use of non-recursive algorithm for binary tree of the former order, in sequence, after the traversal sequence and breadth. Implementation language: C

用vb编写的鲜花订购系统,sql+vb(ado)-prepared with the flowers ordered, sql vb (ADO)

简单的进出库仓库软件，功能简单方便，希望给新人学习参考-Easy access to a repository of software that is simple and convenient features, hoping to learn new information

选择法排序原理：一次选定数组中的每一个数，记下当前位置并假设它是从当前位置开始后面数中的最小数min=i，从这个数的下一个数开始扫描直到最后一个数，并记录下最小数的位置min，扫描结束后如果min不等于i，说明假设错误，则交换min与i位置上数。-Selection sort works: each time the selected number of the array, note the current position and assume that it is behind a number starting from the current location of the minimum number min = i, from this number the number of start scanning the next one until the last one the number of , and record the location of the minimum number of min, after scanning, if min is not equal to i, instructions assume that the error, then the exchange of a few min and i position.

程序调试信息发送与接收-program debugging information send and receive

此功能实现在白板中画椭圆图形!类似Windows的画图模板,还需要完善，请下载来完善它-achieve this function draws the whiteboard elliptical graphics! Windows drawing similar template, we must also perfect, download it to improve

通过vb转换文本文件到Excel表中-through vb text file conversion tables to Excel

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