python--小確幸

#把手機號中間四位隱藏
def change_number(number):
    hiding_number=number.replace(number[3:7],'*'*4)
    print(hiding_number)
number=input('請輸入電話號碼:')
hid_number=change_number(number)

 

#輸入密碼，判斷是否正確
def count_login():
    password=input('password:')
    if password=='12345':
        print('succeed!!')
    else:
        print('password wrong!')
        count_login()
count_login()

 

#輸入密碼，判斷是否正確，輸錯三次就在等一小時
global num#全局變量要先聲明再使用
num=0
def count_login():
    global num#全局變量在函數中用到時要再次聲明
    password=input('password:')
    if password==('12345'):
        print('succeed!!')
    else:
        print('password wrong!')
        num=num+1
        if num==3:
            print('Please try again 1 hour later!')
        else:
            count_login()
count_login()

 

#用循環實現：輸入密碼判斷是否正確，若錯誤3次就再等1小時
i=0
while i<3:
    password=input('passward:')
    if password==('12345'):
        print('Succeed!!')
        exit(0)
    else:
        i=i+1
        print('Password wrong!')
print('Please try again 1 hour later!')

 

#文件打開和編輯文件內容
f = open('C:/Users/Ma Yiling/Desktop/code/Cola.txt', 'w') #清空文件內容再寫
f.write('aaa') #只能寫字符串
f.write('\n')
f.writelines(['123', 'bbb']) #可寫全部能迭代的類型，例如list
f.writelines(('456','\n', 'ccc')) #例如tuple
f.close()