Python: 格式化字串 .format() 順序order,關鍵字keyword,索引index .2% 換算為百分比,精準到小數點下兩位

name = "Alice"
age = 25
formatted_string = "My name is {}, and I'm {} years old.".format(name, age)
print(formatted_string)

name = "Bob"
age = 30
formatted_string = "My name is {name}, and I'm {age} years old.".format(name=name, age=age)
print(formatted_string)

name = "Charlie"
age = 35
formatted_string = "My name is {0}, and I'm {1} years old.".format(name, age)
print(formatted_string)