UserClone

说明：  Description Michael喜欢滑雪百这并不奇怪， 因为滑雪的确很刺激。可是为了获得速度，滑的区域必须向下倾斜，而且当你滑到坡底，你不得不再次走上坡或者等待升降机来载你。Michael想知道载一个区域中最长底滑坡。区域由一个二维数组给出。数组的每个数字代表点的高度。elements in that rectangle. In this problem the sub-rectangle with the largest sum is referred to as the maximal sub-rectangle. ()

USACO第10题，Marry乳业从一些奶农手中采购牛奶，并且每一位奶农为乳制品加工企业提供的价格是不同的。此外，就像每头奶牛每天只能挤出固定数量的奶，每位奶农每天能提供的牛奶数量是一定的。每天Marry乳业可以从奶农手中采购到小于或者等于奶农最大产量的整数数量的牛奶。 给出Marry乳业每天对牛奶的需求量，还有每位奶农提供的牛奶单价和产量。计算采购足够数量的牛奶所需的最小花费。 (Give the requirement of milk and the amount that they offer.)

Easy to learn Visual Basic 6.0

数值分析分析中 用jacobi迭代求解线性方程(Analysis of numerical analysis using jacobi iteration for solving linear equations)

实现大小写互换，即输入大写子母程序会自动转成小写子母(Realization case swap)

后台发送按键小程序。可以将指定按键命令发送到指定窗口。(Background Send button applet. Designated key commands can be sent to the specified window.)

有的科技图书会附有索引，其中列出书中重要术语出现的页码，便于读者查看。试设计一个类似的程序。输入是一个英文文本文件，输出是文件中关键字及其出现的行号的列表并按照关键字有序排列。程序运行方式：>index inputfile keys outputflie (Some books will be accompanied by technology index, which lists important terms appear in the book pages, easy to readers to view. Try to design a similar procedure. English text input is a file, the output is a file that appears in the keywords and their line numbers list and ordered according to keywords. Program run mode:> index inputfile keys outputflie)

利用FT245BM USB模块做的虚拟示波器，暂时可以达到1M的速率！(FT245BM USB modules make use of a virtual oscilloscope, the time being can achieve a rate of 1M!)

MFC编写的RS232 Demo,可供新手借鉴，VS可直接运行。(MFC RS232 Demo)

Accumulator code is source code for simulating accumulator.