基本书上的代码，并回答问题

描述了C++文件操作的操作方法 ios::app：　　　以追加的方式打开文件 ios::ate：　　　文件打开后定位到文件尾，ios:app就包含有此属性 ios::binary： 　以二进制方式打开文件，缺省的方式是文本方式。两种方式的区别见前文 ios::in：　　　 文件以输入方式打开 ios::out：　　　文件以输出方式打开 ios::nocreate： 不建立文件，所以文件不存在时打开失败　 ios::noreplace：不覆盖文件，所以打开文件时如果文件存在失败 ios::trunc：　　如果文件存在，把文件长度设为0 -Describes the C++ file operations How ios:: app: an additional way to open the file ios:: ate: File opened locate end of file, ios: app will contain this attribute ios:: binary: open the file in binary mode , the default way is to text mode. The difference between two ways to see above ios:: in: file to open the input mode ios:: out: file to output mode open the ios:: nocreate: do not create the document, so when you open the file does not exist failed ios:: noreplace: Do not overwrite file, so when you open the file if the file exists failed ios:: trunc: If the file exists, the file size set to 0

一个不同于人月软件工程书籍的 “一本关于软件开发的有效技术书籍” 中文名字是《代码大全》 （中文pdf版本）-a different person software engineering books, "a software development on the effective technical books," the Chinese name of "code Encyclopaedia" (Chinese version pdf)

Another very good Theory Book about Geometry

6502中文版说明书希望对大家有用 我就下个资料怎么这么麻烦还要注册-6502 Chinese version of the brochure you want me useful information on how the next will be too much trouble registration

matlab的函数及指令。最全的指令集和函数集。-matlab functions and commands. The most complete instruction set and function set.

Making Linear and convolutive mixtures from some independent sources.

君正开发板硬件资料。君正JZ4740，硬件原理图-Eagle is the hardware development board information. Jun is JZ4740, hardware schematics. . . . . . .

GPS（全球定位系统）接收机程序-GPS (Global Positioning System) receiver procedures

c语言绘图程序（这里还引入了C语言从磁盘文件读取数据进行处理后在屏幕上会出曲线）-c language graphics program (here also introduced a C language file from the disk to read data on the screen after the deal will be a curve)

uml java xml ~{Ji