#将元组 (1,2,3) 和集合 {4,5,6} 合并成一个列表
tuple = (1,2,3)
set = {4, 5, 6}
list = list(tuple) + list(set)
print(list)

#在列表 [1,2,3,4,5,6] 首尾分别添加整型元素 7 和 0
list = [1, 2, 3, 4, 5, 6]
list.insert(0, 7)
list.append(0)
print(list)

#反转列表 [0,1,2,3,4,5,6,7]
list = [0,1,2,3,4,5,6,7]
list.reverse()
print(list)

#反转列表 [0,1,2,3,4,5,6,7] 后给出中元素 5 的索引号
list = [0,1,2,3,4,5,6,7]
list.reverse()
print(list[::-1].index(5))

#分别统计列表 [True,False,0,1,2] 中 True,False,0,1,2的元素个数，发现了什么
list = [True, False, 0, 1, 2]
a = (list.count(True),
     list.count(False),
     list.count(0),
     list.count(1),
     list.count(2))
print(a)

#从列表 [True,1,0,‘x’,None,‘x’,False,2,True] 中删除元素‘x’。
list = [True,1,0,'x',None,'x',False,2,True]
a = list.count("x")
for i in range(0, a):
    list.remove("x")
print(list)