python 元组及操作

 # 元组是'不可变'的 list    使用小括号 创建后不允许修改

# 创建
# t = ('a','b','c',1,2,3)
# print(t)
# print(type(t))
# # 3
# print(t[5])
# # 3
# print(t[-1])
# # ('b', 'c', 1)
# print(t[1:4])
#
# print('b' in t) #成员运算符  True

 # 创建后不可变

 # 如果元素有列表  列表内容是可以修改的
# t2 = (['张三',38,5000],['李四',28,3000])
#
# # (['张三', 38, 5000], ['李四', 28, 3000])
# print(t2)
#
# # ['张三', 38, 5000]
# print(t2[0])
#
#
# # (['张三', 30, 5000], ['李四', 28, 3000])
# t2[0][1] = 30
# print(t2)


# 元素运算符
t3 = (1,2,3) + (4,5,6)

# (1, 2, 3, 4, 5, 6)
print(t3)

t4 = ('see' , 'you') * 3
# ('see', 'you', 'see', 'you', 'see', 'you')
print(t4)

t5 = (10) * 3
# 30
print(t5)

t6 = (10,) * 3
# (10, 10, 10)
print(t6)

t7 = ('see') * 3
# seeseesee
print(t7)