py-运算符

#! /d/soft/python3/python.exe

# 运算符
""" 
算术运算符
  + - * / % ** //
比较运算符
  ==
  !=
  >
  <
  >=
  <=
赋值运算符
  =
  +=
  -=
  *=
  /=
  %=
  **=
  //=
  := 海象运算符，可在表达式内部为变量赋值
位运算符
  &
  |
  ^
  ~
  <<
  >>
逻辑运算符 not > and > or
 and
 or
 not
成员运算符(序列类型)
  in 是否包含
  not in
身份运算符
  is 类似全等，+判断类型 ===
  is not
"""

listData = [1, 2, 'apple', True]
if (1 in listData):
  print(True)
else :
  print(False)

originData = {"a": 'apple', "b": 'banana'}
dictData = originData
dictData2 = originData
print(dictData is dictData2)
a = 1
b = 1
print(a is b)

""" 
顺序：
切片 > await > ** > 位 > 乘除 > 加减 > 位移 > 与非或 > 比较运算符 > 逻辑 > 条件 > lambda > 赋值
() > 切片 > await > ** > +-~ > *@///% > +- > <<>> > & > ^ > | > in not int is is not < <= > >= != ==
> not > and > or > if else > lambda > :=
 """


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64