Python -operateurs
Python-operateurs
Operators word gebruik om bewerkings op veranderlikes en waardes uit te voer.
In die voorbeeld hieronder gebruik ons die +operateur om twee waardes bymekaar te tel:
Voorbeeld
print(10 + 5)
Python verdeel die operateurs in die volgende groepe:
- Rekenkundige operateurs
- Opdrag operateurs
- Vergelykingsoperateurs
- Logiese operateurs
- Identiteitsoperateurs
- Lidmaatskap operateurs
- Bitgewys operateurs
Python-rekenkundige operateurs
Rekenkundige operateurs word met numeriese waardes gebruik om algemene wiskundige bewerkings uit te voer:
| Operator | Name | Example | Try it |
|---|---|---|---|
| + | Addition | x + y | |
| - | Subtraction | x - y | |
| * | Multiplication | x * y | |
| / | Division | x / y | |
| % | Modulus | x % y | |
| ** | Exponentiation | x ** y | |
| // | Floor division | x // y |
Python-opdragoperateurs
Toewysingsoperateurs word gebruik om waardes aan veranderlikes toe te ken:
| Operator | Example | Same As | Try it |
|---|---|---|---|
| = | x = 5 | x = 5 | |
| += | x += 3 | x = x + 3 | |
| -= | x -= 3 | x = x - 3 | |
| *= | x *= 3 | x = x * 3 | |
| /= | x /= 3 | x = x / 3 | |
| %= | x %= 3 | x = x % 3 | |
| //= | x //= 3 | x = x // 3 | |
| **= | x **= 3 | x = x ** 3 | |
| &= | x &= 3 | x = x & 3 | |
| |= | x |= 3 | x = x | 3 | |
| ^= | x ^= 3 | x = x ^ 3 | |
| >>= | x >>= 3 | x = x >> 3 | |
| <<= | x <<= 3 | x = x << 3 |
Python-vergelykingsoperateurs
Vergelykingsoperateurs word gebruik om twee waardes te vergelyk:
| Operator | Name | Example | Try it |
|---|---|---|---|
| == | Equal | x == y | |
| != | Not equal | x != y | |
| > | Greater than | x > y | |
| < | Less than | x < y | |
| >= | Greater than or equal to | x >= y | |
| <= | Less than or equal to | x <= y |
Python Logical Operators
Logiese operateurs word gebruik om voorwaardelike stellings te kombineer:
| Operator | Description | Example | Try it |
|---|---|---|---|
| and | Returns True if both statements are true | x < 5 and x < 10 | |
| or | Returns True if one of the statements is true | x < 5 or x < 4 | |
| not | Reverse the result, returns False if the result is true | not(x < 5 and x < 10) |
Python Identity Operators
Identiteitsoperateurs word gebruik om die voorwerpe te vergelyk, nie as hulle gelyk is nie, maar as hulle eintlik dieselfde voorwerp is, met dieselfde geheue ligging:
| Operator | Description | Example | Try it |
|---|---|---|---|
| is | Returns True if both variables are the same object | x is y | |
| is not | Returns True if both variables are not the same object | x is not y |
Python-lidmaatskapoperateurs
Lidmaatskapoperateurs word gebruik om te toets of 'n volgorde in 'n voorwerp aangebied word:
| Operator | Description | Example | Try it |
|---|---|---|---|
| in | Returns True if a sequence with the specified value is present in the object | x in y | |
| not in | Returns True if a sequence with the specified value is not present in the object | x not in y |
Python Bitwise Operators
Bitsgewyse operateurs word gebruik om (binêre) getalle te vergelyk:
| Operator | Name | Description |
|---|---|---|
| & | AND | Sets each bit to 1 if both bits are 1 |
| | | OR | Sets each bit to 1 if one of two bits is 1 |
| ^ | XOR | Sets each bit to 1 if only one of two bits is 1 |
| ~ | NOT | Inverts all the bits |
| << | Zero fill left shift | Shift left by pushing zeros in from the right and let the leftmost bits fall off |
| >> | Signed right shift | Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off |