49808171

模拟电信计费系统的设计与实现 要求：（1） 计费功能。根据存放在源数据文件中的通话记录和长途费率文件对每一条通话记录计算其通话费用，并将结果保存在费用文件中。其中： 通话费的计算方法如下： 通话费＝长途电话费＋本地电话费 长途电话费＝费率（元/分钟）×通话时长（分钟） (通话时长不满1分钟的按1分钟计算) 本地电话费为：3分钟以内0.5元，以后每3分钟递增0.2元。 （2） 话费查询。输入一个电话号码，从费用文件中统计该电话号码的所有本地话费、长途话费，并从用户文件中查找其用户名，最后在屏幕上显示： 用户名 电话号码 本地话费 长途话费 话费总计 （3） 话单查询。输入一个电话号码，查询并在屏幕显示该用户的所有通话记录，格式为： 用户名 主叫电话号码 被叫电话号码 通话时长 (Design and implementation of simulation of telecommunication billing system Requirements: (1) the charging function. According to the calculation of the call charges stored in the source data file in the call records and the long rate documents for each call record, and save the results in cost file. Among them: The following conversation method to calculate the fee: Long distance telephone calls =+ local telephone fee Long distance telephone fee = rate (yuan/minute)* call time (minutes) (call time less than 1 minutes to 1 minutes) Local call: 3 minutes 0.5 yuan, increasing 0.2 yuan every 3 minutes later. (2) calls inquiries. Enter a phone number, all local calls, long-distance calls statistics the phone number from the cost in the file, and find the user name from user file, and finally displayed on the screen: The user name phone number local calls long distance charges charges totaling (3) if a single query. Enter a phone number, query and display all the call records of th)

从控制台输入一个字符串，然后再输入想要查找的字符串，判断要查找的字符串是不是在第一次输入的字符串中出现过。(find substring in a source string)

this is CLIPS code for eye disease

惯导系统轨迹生成器，能生成不同位置转动和舰船摇摆条件下的陀螺和加速度计数据，用于研究惯导系统(INS trajectory generator can generate different locations and ships swing conditions rotating gyroscope and accelerometer data, inertial navigation systems for research)

惯导系统轨迹生成器，能生成不同位置转动和舰船摇摆条件下的陀螺和加速度计数据，用于研究惯导系统(INS trajectory generator can generate different locations and ships swing conditions rotating gyroscope and accelerometer data, inertial navigation systems for research)

从多媒体文件中搜索给定的视频帧号，这些帧有一个start_code标志位，本算法是融合顺序和预测相结合的方法，算法的执行时间以及内存空间都比较少。(search the presibed viedo frame in multimedia files，with the startcode flag.Use the predict algorithm and sequence algorithm. The algorithm demand small time and little memory space.)

对控制台窗口操作进行抖动，通过窗口句柄找到控制台窗口，通过快速移动窗口位置实现抖动效果(The operation of the console window is jittered, the console window is found by the window handle, and the jitter effect is achieved by moving the window position quickly.)

磁盘文件系统的模拟,能实现文件的添加,删除,实现多级目录(Disk file system simulation, can realize the file to add, delete, multi-stage directory)

base64 decoder to decode the original char from base64 encoded string(base64 decoder)

包括汉诺塔、杨辉三角、求根值等c程序，在VC++6.0运行没问题。(Including the Tower of Hanoi, Yang Hui triangle, the value of such c rooting process running in VC++6.0 no problem.)