Introduction - If you have any usage issues, please Google them yourself
File data processing two files: data1.txt and data2.txt, two files have a lot of numbers, separated by spaces. Such as: 4,578,854,563,214,786 run the program, calculate the intersection of two file numbers, and sorted, stored in jiao.txt in calculate the numbers of these two files and sets, and sorted , stored in bing.txt in.