是数据库的作业。在VB中，可运行。

VC下实现响铃的小程序，自动生成一个小文件，可以用realplayer等播放器打开-VC under Neither the small program automatically generates a small file that can be used REALPLAYER other players open

P7 基于ARM-Linux的IP Camera解决方案,是我在网上找的，版权归原作者所有.-P7 based on ARM-Linux solutions for the IP Camera is that I find online, and belongs to original author.

用C#语言书写的用于Microsoft SQL Server数据库备份和恢复的类，带进度条-With C# Language written for Microsoft SQL Server database backup and recovery class, with the progress bar

利用Excel进行读写操作，很方便，很实用，可以试一试-Use Excel to read and write operation, it is convenient and very practical, you can try

学生考勤管理系统 学生考勤管理系统 学生考勤管理系统-xueshengkaoqinguanlixitong

题目:稀疏矩阵是指那些多数元素为0的矩阵.利用稀疏特点进行存储和计算可以大大节省存储空间,提高计算效率.实现一个能进行稀疏矩阵基本运算的运算器.基本要求:以带行逻辑连接信息的3元组顺序表表示稀疏矩阵,实现两个矩阵相加,相减和相乘的运算.矩阵的输入形式采用3元组表示,而运算结果的矩阵则以通常的阵列形式列出.概要设计:1.以带行逻辑连接信息的3元组顺序表表示稀疏矩阵2.本程序包含2个模块:(1) 各集合定义模块(2) 主程序模块-topics : sparse matrix refers to those elements for most of the matrix 0. Using sparse features storage and computation can be greatly reduced storage space and improve computational efficiency. One can achieve for sparse matrix operations basic computing device. Basic requirements : OK logical connection with the three yuan Information Group the order said the sparse matrix table to achieve two matrices together, subtract and multiply arithmetic. Matrix entry forms using three yuan Group said, and the results of the matrix operations while the usual array listed. summary of design : 1. in line with the logic of information linking the three element group said sparse chronology matrix 2. this program contains two modules : (1) Set module (2) main program module

This program use for topological sorting

本程序实现调用开放式数据库连接 (ODBC) 函数，及调用 ODBC 函数 SQLTables 和 SQLColumns。 显示选定数据库中的所有表，以及为每一个表显示列的列表和有关每一列的信息.-the program called Open Database Connectivity (ODBC) functions, and ODBC function calls and SQLColumns SQLTables. Shows selected database of all the tables, and each table shows a list of columns and each of the information.

query数据库的例子-example database query

组合问题，从M个不同字符中任取N个字符的所有组合-Combination of issues, from the M different characters of any N-character check all combinations