矢量图形编辑系统中Undo与Redo操作的实现

sdzddWhy your files are not be used? 1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exis

（一）功能要求： （1） 信息维护： 要求：学生信息数据要以文件的形式保存，能实现学生信息数据的维护。此模块包括子模块有：增加学生信息、删除学生信息、修改学生信息 （2） 信息查询：要求：查询时可实现按姓名查询、按学号查询 （3） 成绩统计：要求：A输入任意的一个课程名（如数学）和一个分数段（如60--70），统计出在此分数段的学生情况。 排序：能-(1) functional requirements : (a) maintaining information : Request : Student data to information in the form of a document preservation, Students can achieve the maintenance of information and data. This module, including sub-modules are : increased student information, delete information of students, student information changes (2) Information : Request : inquiries can be realized by name inquiries, inquiries by the school, (3) results statistics : requirements : A importation of an arbitrary courses (such as mathematics) and a fraction of the (60-- 70), Statistics from the scores of the students of. Ranking : can

跟我学数字电子技术，一本很不错的学习资料，是初学者的入门资料。欢迎下载交流。-Follow me digital electronic technology, a very good learning materials, is introductory information for beginners. Are welcome to download the exchange.

国标gb15148- GB code gb15148

用一下Delphi编写后台监控软件-with what Delphi background Monitoring Software

用IO模拟方式读写三星系列的NAND FLASH的文章. 不错的-use IO simulation literacy Samsung"s NAND Flash series of articles. Good

一个可行性报告样本-samples of a feasibility report

关与操作系统的c模拟程序-customs and operating systems, c Simulation Program

由于网上很多朋友问我怎么入侵别人的机器，所以整理了一些我认为容易学的漏洞入侵方法，希望能给初学者一些帮助，下面讲的内容很简单，高手就不用浪费时间看了-As the online a lot of friends ask me how to invade other people

文件上传发生地方的师傅都是士佛挡杀佛的师傅是的大夫大厦-12321dsdfdsffdsfdsfsdfdsfdsfsd