1. 创建一个列表，列表中有10个数字, 保证列表中元素的顺序，对列表进行排重,并对列表使用进行降序排序

例如：[70, 88, 91, 70, 107, 234, 91, 177, 282, 197]--- 去重之后 [70, 88, 91, 107, 234, 177, 282, 197]---- 降序排序 [282, 234, 197, 177, 107, 91, 88, 70]

nums = [70, 88, 91, 70, 107, 234, 91, 177, 282, 197]
nums2 = []
for x in nums:if x not in nums2:nums2.append(x)
nums1 = nums2
result = nums1.sort(reverse=True)
print('nums=', nums1)  # nums= [282, 234, 197, 177, 107, 91, 88, 70]

2. 利用列表推导式, 完成以下需求

a. 生成一个存放1-100中个位数为3的数据列表

结果为 [3, 13, 23, 33, 43, 53, 63, 73, 83, 93]

result = [x for x in range(1, 101) if x % 10 == 3]
print(result)  # [3, 13, 23, 33, 43, 53, 63, 73, 83, 93]

b. 利用列表推导式将列表中的整数提取出来

例如：[True, 17, "hello", "bye", 98, 34, 21] --- [17, 98, 34, 21]

list1 = [True, 17, "hello", "bye", 98, 34, 21]
result = [x for x in list1 if type(x) == int]
print(result)  # [17, 98, 34, 21]

c.利用列表推导式存放指定列表中字符串的长度

例如： ["good", "nice", "see you", "bye"] --- [4, 4, 7, 3]

list1 = ["good", "nice", "see you", "bye"]
result = [len(x) for x in list1]
print(result)  # [4, 4, 7, 3]

d. 利用列表推导式删除列表中整数个位数小于5的元素

例如：[24, 'abc', 99, True, 21, 38, 'hello'] --- ['abc', 99, True, 38, 'hello']

list1 = [24, 'abc', 99, True, 21, 38, 'hello']
result = [x for x in list1[:] if type(x) != int or x % 10 > 5]
print(result)  # ['abc', 99, True, 38, 'hello']

e. 利用列表推导式获取元素是元组的列表中每个元组的最后一个元素

例如：[(10, 20, 30), ('abc', 'hello'), (1, 2, 3.4), (True, False)]  --- [30, 'hello', 3.4, False]

list1 = [(10, 20, 30), ('abc', 'hello'), (1, 2, 3.4), (True, False)]
result = [x[-1] for x in list1]
print(result)  # [30, 'hello', 3.4, False]

f.利用列表推导式将数字列表中所有的奇数乘以2，所有的偶数除以2

例如: [23, 4, 67, 88, 90, 21]  -> [46, 2, 134, 44, 45, 42]

list1 = [23, 4, 67, 88, 90, 21]
result = [x * 2 if x % 2 != 0 else int(x / 2) for x in list1 ]
print(result)  # [46, 2, 134, 44, 45, 42]

3. 已知一个列表获取列表中指定元素所有的下标

   例如：[10, 20, 34, 10, 9, 78]
   10的下标：[0, 3]
   20的下标：[1]
   30的下标：[]
   

4. 已知一个数字列表，写程序判断这个列表时候是连续递增列表。

   例如：
   [1, 2, 3, 4, 5]   -> True
   [23, 45, 78, 90]  -> True
   [1, 3, 2, 4, 5]	-> False
   

5. 已知两个列表，将两个列表按照下面的规律交叉合并

   A = [10, 20, 30, 40, 50]
   B = [100, 200, 300]
   结果：[10, 100, 20, 200, 30, 300, 40, 50]
   

6. 已知两个有序列表，将两个列表合并，合并后的新列表中元素仍然是递增列表

   A = [10, 20, 30, 40, 50]
   B = [25, 44, 60]
   结果：[10, 20, 25, 30, 40, 45, 50, 60]
   

A = [10, 20, 30, 40, 50]
B = [25, 44, 60]
C = A + B
result = sorted(C)
print(result)  # [10, 20, 25, 30, 40, 44, 50, 60]