ปลั๊กอินสำหรับไพธอนข้อมูลวัตถุ
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ปลั๊กอินสำหรับไพธอนข้อมูลวัตถุ
from dataclasses import dataclass
@dataclass
class InventoryItem:
"""Class for keeping track of an item in inventory."""
name: str
unit_price: float
quantity_on_hand: int = 0
def total_cost(self) -> float:
return self.unit_price * self.quantity_on_hand
dataclass เป็นภาษาไพธอน
def __init__(self, name: str, unit_price: float, quantity_on_hand: int=0):
self.name = name
self.unit_price = unit_price
self.quantity_on_hand = quantity_on_hand
def total_cost(self) -> float:
return self.unit_price * self.quantity_on_hand
# Is the same as:
from dataclasses import dataclass
@dataclass
class InventoryItem:
"""Class for keeping track of an item in inventory."""
name: str
unit_price: float
quantity_on_hand: int = 0
def total_cost(self) -> float:
return self.unit_price * self.quantity_on_hand
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