Introduction - If you have any usage issues, please Google them yourself
C-language simulation of ATM machine system! The use of file storage! Each user will be saved to user.txt text, the other system-generated 4 files (record deposits, withdrawals records, transfer records, balance)! Achieve deposit, take, transfer, search function! Enter the password to limit the number of times, the error three times to exit the program! Simple user password encryption!