python基础day2-元组数据类型,2019-6-25

# 定义:我发现元组的数据类型和列表的基本差不多
#  tuple((1, 2, 3, '五', '六'))
tuple1 = (1, 2, 3, '五', '六')
print(tuple1)  # (1, 2, 3, '五', '六')
# 优先掌握的操作:
# 1、按索引取值(正向取+反向取)：只能取
print(tuple1[2])  # 3

# 2、切片(顾头不顾尾，步长)
# 从0开始切片到5-1， 步长为3
print(tuple1[0:5:3])  # (1, '五')

# 3、长度
print(len(tuple1))  # 5

# 4、成员运算in和not in
print(1 in tuple1)  # True
print(1 not in tuple1)  # False

# 5、循环
for line in tuple1:
    # print(line)
    # print默认end参数是\n
    print(line, end='_')