元组

定义一个元组

# 定义一个空元组

data = tuple()

print(data)  # ()
print(type(data))  # <class 'tuple'>

data = ()

print(data)  # ()
print(type(data))  # <class 'tuple'>

data = ("小满", 3)

print(data)  # ('小满', 3)
print(type(data))  # <class 'tuple'>

# 可以 但是不建议
data = "小满", 3

print(data)  # ('小满', 3)
print(type(data))  # <class 'tuple'>

元组的相加

number = (1, 2, 3, 4)
symbol = ("a", "b", "c", "d")

new_tuple = number + symbol
print(new_tuple)  # (1, 2, 3, 4, 'a', 'b', 'c', 'd')

元组的相乘

base_tuple = ("小满", "最棒啦")
new_tuple = base_tuple * 3

print(new_tuple)  # ('小满', '最棒啦', '小满', '最棒啦', '小满', '最棒啦')

元组的常用方法

元组无法增删改查，一般用来存放的数据基本上不会去做修改

count

data = ("小满", 3, "女", "小满")
print(data.count("小满"))  # 2

index

data = ("小满", 3, "女", "小满")
print(data.index("小满"))  # 0

元组的修改

元组是不支持增删改查的，不过可以先转成列表，修改好值之后，然后转成元组

my_tuple = ("小满", 3)
data = list(my_tuple)
data[0] = "王昭君"

new_tuple = tuple(data)
print(my_tuple)  # ('小满', 3)
print(new_tuple)  # ('王昭君', 3)