[2.19] study notes Python member operator, the identity of operators, operator precedence

Member operator

Not going to use, and then add time and other school list

\(in\) 与 \(not in\)

\ (in \) : If you find the specified value in the specified sequence, the returned \ (to true \)
\ (not in \) : If you find the specified value in the specified sequence, the returned \ (false \)

Identity operator

Also temporarily not

\(is\) 与 \(is not\)

\ (IS \) : to determine whether the two references to the same object identifier
\ (IS not \) : to determine whether the two identifiers refer to different objects

priority

1. \(**\)
2. ~, +, - (sign)
3. *, /, %, //
4. +, -
5. <<, >>
6. &
7. |, ^

8. , <, >=, <=

9. ==, !=
10. =, +=, -= ...
11. Identity operator
12. Member operator
13. \(not\), \(and\), \(or\)