Introduction - If you have any usage issues, please Google them yourself
1, find the one-dimensional array of maximum and minimum output Pascal' s Triangle, a one-dimensional array, find the saddle point of a two-dimensional array to identify all common characters in the two strings 5, the output amount of Chinese uppercase to achieve a complex class 7, a bank account class 8, programming judgment and identification identifier to achieve a calculator 10, programming a user login window, in which the user name requirements for 10 number, and the first digit can not be 0.