1 """
 2     字典推导式
 3     练习:exercise01.py
 4     练习:exercise02.py
 5 """
 6 # 1 2 3 4 ... 10 -> 平方
 7 dict01 = {}
 8 for item in range(1, 11):
 9     dict01[item] = item ** 2
10 print(dict01)
11 # 推导式:
12 dict02 = {item: item ** 2
13           for item in range(1, 11)}
14 print(dict02)
15 
16 # 只记录大于５的数字
17 dict01 = {}
18 for item in range(1, 11):
19     if item >5:
20         dict01[item] = item ** 2
21 
22 print(dict01)
23 
24 dict02 = {item: item ** 2
25           for item in range(1, 11) if item >5}
26 print(dict02)

 1 """
 2     集合set
 3     练习:exercise03
 4     练习:exercise04
 5 """
 6 # 1. 创建集合
 7 set01 = set()
 8 # set --> str
 9 set01 = set("abcac")
10 list01 = list(set01)
11 str01 = "".join(list01)
12 print(str01)  # "bca"
13 # 创建具有默认值的集合
14 set02 = {"a", "b", "a"}
15 
16 # 2. 添加元素
17 set02.add("qtx")
18 
19 # 3. 删除元素
20 set02.remove("a")
21 
22 # 4. 获取所有元素
23 for item in set02:
24     print(item)
25 
26 # 5. 数学运算
27 set01 = {1, 2, 3}
28 set02 = {2, 3, 4}
29 # 交集
30 print(set01 & set02)  # {2,3}
31 # 并集
32 print(set01 | set02)  # {1, 2, 3, 4}
33 # 补集
34 print(set01 ^ set02)  # {1, 4}
35 print(set01 - set02) # {1}
36 print(set02 - set01) # {4}
37 
38 # 子集
39 set03 = {1, 2}
40 print(set03 < set01)
41 # 超集
42 print(set01 > set03)

1 """
2     固定集合
3 """
4 set01 = frozenset([1, 2, 3, 3, 5])
5 list02 = list(set01)
6 print(set01)
7 print(list02)

 1 """
 2     列表推导式嵌套
 3     练习:exercise09.py
 4     16:55
 5 """
 6 list01 = ["a", "b", "c"]
 7 list02 = ["A", "B", "C"]
 8 list03 = []
 9 for r in list01:
10     for c in list02:
11         list03.append(r + c)
12 
13 print(list03)
14 
15 list04 = [r + c for r in list01 for c in list02]
16 print(list04)
17 
18 # 练习:列表的全排列
19 # [“香蕉”,"苹果","哈密瓜"]
20 # [“可乐”,"牛奶"]
21 list01 = ["香蕉","苹果","哈密瓜"]
22 list02 = ["可乐","牛奶"]
23 list03 = []
24 for r in list01:
25     for c in list02:
26         list03.append(r+c)
27 list04 = [r+c for r in list01 for c in list02]
28 print(list03)
29 print(list03)

 1 """
 2     自定义函数
 3     练习:exercise10.py
 4     练习:exercise11.py
 5 """
 6 
 7 """
 8 print("直拳")
 9 print("摆拳")
10 print("肘击")
11 print("临门一脚")
12 #...............
13 print("直拳")
14 print("摆拳")
15 print("肘击")
16 print("临门一脚")
17 #...............
18 print("直拳")
19 print("摆拳")
20 print("肘击")
21 print("临门一脚")
22 """
23 
24 
25 # 定义（做功能）函数
26 def attack():
27     """
28         单次攻击　
29     """
30     print("临门一脚")
31     print("直拳")
32     print("摆拳")
33     print("肘击")
34 
35 
36 # 形式参数
37 def attack_repeat(count):
38     """
39         重复攻击
40     :param count: 攻击次数,int类型
41     """
42     for i in range(count):
43         print("临门一脚")
44         print("直拳")
45         print("摆拳")
46         print("肘击")
47 
48 
49 # 调用函数
50 attack()
51 # ...............
52 # 调用函数
53 attack()
54 # ...............
55 # 调用函数
56 attack()
57 print("--------------")
58 # 调用函数
59 # 实际参数
60 attack_repeat(2)