| ???? Python ??? | ??5?? ?????????? | |
|---|---|---|
| ???? | ????? | ???? |
??????????????????????????÷???
????????????y????????????????и?????????????磬?????????2 + 3????y??????????????Python????????
>>> 2 + 3
5
>>> 3 * 5
15
>>>
| ????? | ???? | ??? | ???? |
|---|---|---|---|
| + | ?? | ??????????? | 3 + 5???8??'a' + 'b'???'ab'?? |
| - | ?? | ?????????????????????????? | -5.2????????????50 - 24???26?? |
| * | ?? | ??????????????????????????ε?????? | 2 * 3???6??'la' * 3???'lalala'?? |
| ** | ?? | ????x??y???? |
3 ** 4???81????3 * 3 * 3 * 3?? |
| / | ?? | x????y | 4/3???1?????????????????????????4.0/3??4/3.0???1.3333333333333333 |
| // | ????? | ??????????????? | 4 // 3.0???1.0 |
| % | ?? | ????????????? | 8%3???2??-25.5%2.25???1.5 |
| << | ???? | ?????????????????????????????????????ж??????????????????????0??1?? | 2 << 2???8??????2?????????10 |
| >> | ???? | ???????????????????????? | 11 >> 1???5??????11?????????1011?????????1???????101??????????5?? |
| & | ??λ?? | ?????λ?? | 5 & 3???1?? |
| | | ??λ?? | ?????λ?? | 5 | 3???7?? |
| ^ | ??λ??? | ?????λ??? | 5 ^ 3???6 |
| ~ | ??λ??? | x???λ?????-(x+1) | ~5???-6?? |
| < | С?? | ????x???С??y?????б???????????1????棬????0????????????????????True??False?????????Щ?????????д?? | 5 < 3????0????False????3 < 5????1????True????????????????????3 < 5 < 7????True?? |
| > | ???? | ????x??????y | 5 > 3????True???????????????????????????????????????????????????????????????False?? |
| <= | С????? | ????x???С?????y | x = 3; y = 6; x <= y????True?? |
| >= | ??????? | ????x?????????y | x = 4; y = 3; x >= y????True?? |
| == | ???? | ???????????? | x = 2; y = 2; x == y????True??x = 'str'; y = 'stR'; x == y????False??x = 'str'; y = 'str'; x == y????True?? |
| != | ?????? | ????????????????? | x = 2; y = 3; x != y????True?? |
| not | ????????? | ???x?True??????False?????x?False????????True?? | x = True; not x????False?? |
| and | ???????? | ???x?False??x and y????False????????????y???????? | x = False; y = True; x and y??????x??False??????False????????Python???????y?????????????????????????False?????x??False???????????????·???? |
| or | ???????? | ???x??True????????True????????????y???????? | x = True; y = False; x or y????True????·??????????????á? |
| ???? | ????? | ???? |
|---|---|---|
| ??? | ??? | ?????????? |