1. replace() 取代string 中的所選字
2. split () 創造一個list 把string 字串分開
3. list() create a list character by charterer
4. format variable.format() → 代入變數內容
5. f-string 將變數設定好 再input 到 大括號設定的variable{}

# replace
name = "Allen Iverson"
print(name.replace("Allen", "Alan"))
-output-------------------------------------
Alan Iverson

# split / list
sentence = " I am fine today "
print(sentence.split())  # split setence
print(list(sentence))  # list 個別字元

output---------------------------------------------
['I', 'am', 'fine', 'today']
[' ', 'I', ' ', 'a', 'm', ' ', 'f', 'i', 'n', 'e', ' ', 't', 'o', 'd', 'a', 'y', ' ']

# 資料類型 (string, tuple, list, dict, number, boolean)
# format fstring
# fstring python 3.6

sentence = "I have {} today !".format("bad mood")
print(sentence)
print("{}, {}, {}".format("A", "20", "I am fine"))
print("{0}, {2}, {1}".format("A", "20", "I am fine"))
print("{0}, {0}, {0}".format("A", "20", "I am fine"))
print("{name}, {location}, {sport}".format(
    name="albert", sport="jogging", location="Taoyaun"))
output-------------------------------------------------------
I have bad mood today !
A, 20, I am fine
A, I am fine, 20
A, A, A
albert, Taoyaun, jogging

# fstring (format 簡化版)
myname = "Albert"
sport = "jogging"
print(f"{myname} love {sport} !")
output-------------------------------------------
Albert love jogging !

Python的小括弧，中括號，大括號的區別