字串(str)轉換成列表(list):

str1 = "12345"
list1 = list(str1)
print(list1)

str2 = "123 sjhid dhi"
list2 = str2.split()  # or list2 = str2.split(" ")
print(list2)

str3 = "www.google.com"
list3 = str3.split(".")
print(list3)

輸出:
[‘1’, ‘2’, ‘3’, ‘4’, ‘5’]
[‘123’, ‘sjhid’, ‘dhi’]
[‘www’, ‘google’, ‘com’]

列表(list)轉換成字串(str):

list1 = ['www', 'google', 'com']
str1 = ".".join(list1)
print(str1)

str2 = ''.join(list1)
print(str2)

輸出:
www.google.com
wwwgooglecom