HackMD
Python Magic Method List | Python 魔術方法列表
Building Class | 構造類別
| Method Name | Symbol | Description |
|---|---|---|
__new__(cls, [...) |
cls([...) |
構造 |
__init__(self, [...) |
self |
初始化 |
__del__(self) |
del self |
刪除 |
__call__(self, [...) |
self([...) |
調用自身 |
Attribute | 屬性
| Method Name | Symbol | Description |
|---|---|---|
__getattr__(self, key) |
self.key |
調用屬性 |
__setattr__(self, key, value) |
self.key = value |
設定屬性 |
__delattr__(self, key) |
del self.key |
刪除屬性 |
Boolean Operation | 布林值
| Method Name | Symbol | Description |
|---|---|---|
__cmp__(self, other) |
|
|
__eq__(self, other) |
self == other |
等於 |
__ne__(self, other) |
self != other |
不等於 |
__lt__(self, other) |
self < other |
小於 |
__le__(self, other) |
self <= other |
小於等於（不大於） |
__gt__(self, other) |
self > other |
大於 |
__ge__(self, other) |
self >= other |
大於等於（不小於） |
Math Operation | 數學運算符
| Method Name | Symbol | Description |
|---|---|---|
__add__(self, other) |
self + other |
加 |
__sub__(self, other) |
self - other |
減 |
__mul__(self, other) |
self * other |
乘 |
__truediv__(self, other) |
self / other |
除 |
__floordiv__(self, other) |
self // other |
整除 |
__mod__(self, other) |
self % other |
求餘 |
__divmod__(self, other) |
divmod(self, other) |
|
__pow__(self, other) |
power(self, other) & self ** other |
次方 |
__lshift__(self, other) |
self << other |
左移 |
__rshift__(self, other) |
self >> other |
右移 |
__and__(self, other) |
self & other |
與 |
__or__(self, other) |
self | other |
或 |
__xor__(self, other) |
self ^ other |
異或 |
Right Math Operation | 數學右運算符
| Method Name | Symbol | Description |
|---|---|---|
__radd__(self, other) |
other + self |
被加 |
__rsub__(self, other) |
other - self |
被減 |
__rmul__(self, other) |
other * self |
被乘 |
__rtruediv__(self, other) |
other / self |
被除 |
__rfloordiv__(self, other) |
other // self |
被整除 |
__rmod__(self, other) |
other % self |
被求餘 |
__rpow__(self, other) |
other ** self |
被次方 |
__rlshift__(self, other) |
other << self |
被左移 |
__rrshift__(self, other) |
other >> self |
被右移 |
__rand__(self, other) |
other & self |
被與 |
__ror__(self, other) |
other | self |
被或 |
__rxor__(self, other) |
other ^ self |
被異或 |
Assign Value Operation | 賦值數學運算符
| Method Name | Symbol | Description |
|---|---|---|
__iadd__(self, other) |
self += other |
自加 |
__isub__(self, other) |
self -= other |
自減 |
__imul__(self, other) |
self *= other |
自乘 |
__itruediv__(self, other) |
self /= other |
自除 |
__ifloordiv__(self, other) |
self //= other |
自整除 |
__imod__(self, other) |
self %= other |
自求餘 |
__ipow__(self, other) |
self **= other |
自次方 |
__ilshift__(self, other) |
self <<= other |
自左移 |
__irshift__(self, other) |
self >>= other |
自右移 |
__iand__(self, other) |
self &= other |
自與 |
__ior__(self, other) |
self |= other |
自或 |
__ixor__(self, other) |
self ^= other |
自異或 |
Unary Operation | 一元運算符
| Method Name | Symbol | Description |
|---|---|---|
__pos__(self) |
+self |
正 |
__neg__(self) |
-self |
負 |
__abs__(self) |
abs(self) |
絕對值 |
__invert__(self) |
~self |
逆 |
Type Conversion | 類型轉換
| Method Name | Symbol | Description |
|---|---|---|
__complex__(self) |
complex(self) |
複數 |
__int__(self) |
int(self) |
整數 |
__float__(self) |
float(self) |
浮點數 |
__round__(self, n]) |
round(self, n]) |
四捨五入 |
__index__(self) |
1. 2. 3. |
索引 |
__repr__(self) |
repr(self) |
|
__bool__(self) |
bool(self) |
布林值 |
__str__(self) |
str(self) |
字串 |
__format__(self) |
f"{}" |
Context Manage | 上下文管理器
| Method Name | Symbol | Description |
|---|---|---|
__enter__(self) |
1. 2. |
進入上下文管理器 |
__exit__(self, exctype, excvalue, trackback) |
1. 2. |
退出上下文管理器 |
Container | 容器
| Method Name | Symbol | Description |
|---|---|---|
__len__(self) |
len(self) |
容器長度 |
__getitem__(self, key) |
self[key] |
調用容器值 |
__setitem__(self, key, value) |
self[key] = value |
設定容器值 |
__delitem__(self, key) |
del self[key] |
刪除容器值 |
__iter__(self) |
iter(self) |
迭代容器 |
__reversed__(self) |
reversed(self) |
反轉容器 |
__contains__(self, item) |
item in self & item not in self |
在／不在容器裡 |
