python基礎①

改變工作環境

import os
os.chdir("I:\\pythonwork")
os.getcwd()
'I:\\pythonwork'
           

for循環

cities = ["beijing","shanghai","guangzhou"]
for city in cities:
    print(city)

           

if語句

animals = ["cat","mouse","rabbit"]

if "cat" in animals:
    print("yes")
else:
    print("no")