變量

name = "xiaochui"

name2 = name

print("My name is",name2)

Myname is xiaochui

---------------------------------------------------------------------------------------------------------------

name = "xiaochui"

name2 = name name2直接指向"xiaochui" 不是先指向name

name = "xiao" name 覆蓋了之前的變量，現在是"xiao", 而name2 還是"xiaochui"

print("My name is",name)

My name is xiao

-----------------------------------------------------------------------------------------------------------------

格式化輸出

name = input("name:")

age = input("age:") 下面使用age：%d的話會報錯，默認是字符串，而%d只能接收數字

sge = int (input("age:"))

job = input("job:")

salary = input("salary:")

info = ‘‘‘

-----------------------info of %s---------- # s==string

Name:%s

Age:%s

Age:%d #d只能接收數字，那麽上面的age=input("age:")要修改，否則報錯 age=int(input("age":))

Job:%s

Salary:%s

‘‘‘ %(name,name,age,job,salary)

print(info)

info2 = ‘‘‘

-----------------------info of {_naem}------------

Name = {_name}

Age = {_age}

Job = {_job}

Salary = {_salary}

‘‘‘ .format(_name = name,

　　　　 _age = age,

　　　　 _job = job,

　　　　 _salart = salart)

print(info2)

------------------------------------------------------------------------------------------------------------------

密碼看不了==密文

導入模塊 import ****

import getpass

_username = "xiao"

_password = "chui"

username = input("username:")

password = input("password:")

if _username == username and _password == password:

　　print("Welcome user {name} login...".format(name= username))

else:

　　print("Invalid username or password!")

---------------------------------------------------------------------------------------------------------------------------

猜年齡

age_of_xiaochui = 18

count = 0

while True"

　　if count == 3:

　　　　break

　　guess_age = int(input("guess:"))

　　if age_of_xiaochui == guess_age:

　　print("yes,you got it!")

　　break

　　elif guess_age > age_of_xiaochui:

　　print("think samaller...")

　　else:

　　print("think bigger!")

　　count += 1

else:

　　print("you have tried too man yimes..fuck off")

不退出程序玩

age_of_xiaochui = 18

count = 0

while count <3:

　　guess_age = int(input("guess_age:")

　　if age_of_xiaochui == guess_age:

　　print("yes,you got it!")

　　break

　　esif guess_age > age_of_xiaochui:

　　　　print("think smaller...")

　　else:

　　　　print("think bigger!")

　　count += 1

　　if count == 3:

　　　　countine_confirm = input("do you want to keep guessing..?")

　　　　if countine_confirm != "n":

　　　　　　count = 0

else:

　　print("you have tried woo many yimes..fuck off")

------------------------------------------------------------------------------------------------------

forx循環

for i in range(10): # i 是臨時變量

　　print("loop",i)

----------------------------------

age_of_xiaochui = 18

for i in range(3):

　　guess_age = int(input("guess_age:"))

　　if age_of_xiaochui == guess_age:

　　print("yes,you got it!")

　　break

　　elif guees_age < age_of_xiaochui:

　　　　print("think smaller...")

　　else:

　　　　print("think bigger!")

else:

　　print("you have tried too many yimes..fuck off")

Pyhton基礎 day1