用于分档的分割与合并。原理是用目标文件所在的目录相加得到的ascii码值的和做为种子获得随机数，然后用得到的随机数列模2得到0或1，然后分别向两个文件写入，以实现简单的加密功能（当然种子的获取方法和分割的文件数都是可以改的，只要模的值不同即可）。文件合并功能正好相反，是读取两个文件后还原出原来的文件-For the sub-file division and consolidation. The principle is to use the directory where the target file to be added to the ascii code value and as a seed to obtain a random number, and then get a random sequence model 2 are 0 or 1, and then write separately to the two documents in order to achieve a simple encryption (of course, access methods and split seeds of the number of documents can all be changed, as long as the value of the different modules can be). File Merge On the contrary, is to read out the two files to restore the original file. . .