User Login

先画流程图:

程序如下：import getpass

name = ‘root‘pwd = ‘123‘for i in range(3):    input_name = input("Input login username:").strip()#    input_pwd = input("Input login password:").strip()    input_pwd = getpass.getpass("Input login password:").strip()    if (input_name == name):        if (input_pwd == pwd):            print("Certification successfull,Welcome to DMS manager system")            break        else:            print("password input error!\n")    else:        print("Username input error!\n")else:    print("Enter wrong three times %s is locked!"  % input_name)