---------------edit-in-windows-by-pycharm---------------------import randomuname = "mologa"psword = "mologa2016"times = int(random.randint(0,2))#dict = {uname:‘mologa‘,psword:‘mologa2016‘}
while times < 3: username = input("please you name:") if username == uname: while times < 3: password = input("please enter your password:") if password == psword: print("welcome login!") else: key = input("do you want to try again!") if key == ‘yes‘ or key == ‘y‘: times += 1 continue else: # print("bye-bye!^_^") pass break else: print("user no exits") key = input("do you want to chang again") if key == ‘yes‘ or key == ‘y‘: continue else: print("bye-bye!^_^") breakif times >= 3: print("sorry!user is locked.") print(times
--------------------test-1------------------------
F：\Python35\python.exe F:/mologa-workspace/two.py
please you name:1231
user no exits
do you want to chang againy
please you name:wd23d2
user no exits
do you want to chang againy
please you name:12edd23d
user no exits
do you want to chang againy
please you name:df2qdf34f
user no exits
do you want to chang againy
please you name:mologa
please enter your password:f23d
do you want to try again!y
sorry!user is locked.
3
Process finished with exit code 0
--------------------test-2------------------------
F:\Python35\python.exe F:/mologa-workspace/two.py
please you name:mologa
please enter your password:df23r3
do you want to try again!y
please enter your password:d23dfa
do you want to try again!y
please enter your password:f23frawf
do you want to try again!y
sorry!user is locked.
3
Process finished with exit code 0
--------------------test-3------------------------
F:\Python35\python.exe F:/mologa-workspace/two.py
please you name:mologa
please enter your password:mologa2016
welcome login!
Process finished with exit code 0
谢谢！小组导师罗大帅给我提示了一个while循环内的参数pass，迈出了第一步，非常感谢！