read-and-write

可根据时间自动对指定的文件备份到指定的位置。(According to the time automatically to the specified file backup to the specified location.)

获取文件信息，包括创建时间，修改时间，访问时间，属性(To obtain file information, including creation time, modification time, access time, properties)

读取两个文件，比较其中的相同单词和出现次数及频率，并将结果保存到文件(Read the two documents, which compare the same words and the number and frequency of appearance, and save the results to a file)

用VC++实现的一个简单哈夫曼压缩码和解码程序，可以对任意字符的文本文件进行压缩并解压(With VC++ Realize a simple Huffman compression code and decoding procedures, arbitrary characters can compress a text file and extracting)

开始显示速度很慢，要达到5~6秒。开始显示速度很慢，要达到5~6秒。开始显示速度很慢，要达到5~6秒。(Began to show very slow to reach 5 to 6 seconds.Began to show very slow to reach 5 to 6 seconds.Began to show very slow to reach 5 to 6 seconds.)

这是点云库学习pcl里面的程序中所提到的pcd格式的文件。(point cloud pcd)

说明：  可以新建excel，打开已存在excel，向excel读写数据，关闭、保存excel.(Can create a new excel, open an existing excel, read and write data to excel, close, save excel.)

说明：  一个文件的打开,怎样在word里进行读和写(Open a document and how to read and write in the word)

标准c的重要的头文件，便于在程序编写中查阅，很有帮助的(standards of the first important document, prepared to facilitate the inspection process, helpful)

用c++语言编程，读取txt文件，并写成.e文件,(Using c++ language programming, reading txt file, and written as. E documents,)