Python fifth day job title

1. Please list each element by "_" link up.

   users = ['李少奇','李启航','渣渣辉']

2. Please list each element by "_" link up.

   users = ['李少奇','李启航',666,'渣渣辉']

3. Please tuples v1 = all elements (11,22,33) is added to the list of v2 = [44,55,66] in.

4. Please tuples v1 = all elements of the even-indexed location (11,22,33,44,55,66,77,88,99) is added to the list of v2 = [44,55,66] in.

5. The dictionary keys and values ​​added to the key_list and value_list two lists, such as:

   key_list = []
   value_list = []
   info = {'k1':'v1','k2':'v2','k3':'v3'}

6. 字典dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}

   a. 请循环输出所有的key
   b. 请循环输出所有的value
   c. 请循环输出所有的key和value
   d. 请在字典中添加一个键值对，"k4": "v4"，输出添加后的字典
   e. 请在修改字典中 "k1" 对应的值为 "alex"，输出修改后的字典
   f. 请在k3对应的值中追加一个元素 44，输出修改后的字典
   g. 请在k3对应的值的第 1 个位置插入个元素 18，输出修改后的字典

7. Please print each cycle k2 corresponding element values.

   info = {
       'k1':'v1',
       'k2':[('alex'),('wupeiqi'),('oldboy')],
   }

8. A character string "k: 1 | k1: 2 | k2: 3 | k3: 4" processed into a dictionary { 'k': 1, 'k1': 2 ....}

9. write the code

   """
   有如下值 li= [11,22,33,44,55,66,77,88,99,90] ,将所有大于 66 的值保存至字典的第一个key对应的列表中，将小于 66 的值保存至第二个key对应的列表中。
   
   result = {'k1':[],'k2':[]}
   """

10. Output of goods list, the user enters the serial number, the user selects the display of goods

    """
    商品列表：
      goods = [
            {"name": "电脑", "price": 1999},
            {"name": "鼠标", "price": 10},
            {"name": "游艇", "price": 20},
            {"name": "美女", "price": 998}
        ]
    要求:
    1：页面显示 序号 + 商品名称 + 商品价格，如：
          1 电脑 1999 
          2 鼠标 10
          ...
    2：用户输入选择的商品序号，然后打印商品名称及商品价格
    3：如果用户输入的商品序号有误，则提示输入有误，并重新输入。
    4：用户输入Q或者q，退出程序。
    """

11. Look at the code written results

    v = {}
    for index in range(10):
        v['users'] = index
    print(v)