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91 lines
3.6 KiB
91 lines
3.6 KiB
from datetime import date
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class Student:
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def __init__(self, sid: str, name: str, height: str, birth_date: date | str, enrollment_date: date | str, class_name: str):
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self.sid = sid
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self.name = name.strip()
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self.height = int(height) # 转换为整数类型
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self.birth_date = birth_date if isinstance(birth_date, date) else date.fromisoformat(birth_date)
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self.enrollment_date = enrollment_date if isinstance(enrollment_date, date) else date.fromisoformat(enrollment_date)
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self.class_name = class_name
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self._validation_errors = []
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self._validate_height()
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self._validate_date()
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self._validate_name()
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def _validate_height(self) -> None:
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if not (50 <= self.height <= 250):
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self._validation_errors.append(f"身高{self.height}cm超出合理范围")
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def _validate_name(self) -> None:
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if not (2 <= len(self.name) <= 20) or not self.name.isprintable():
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self._validation_errors.append("姓名长度需在2-20个字符之间且为可打印字符")
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if not self.name.isprintable():
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self._validation_errors.append("姓名长度需在2-20个字符之间")
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def _validate_date(self) -> None:
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today = date.today()
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if self.birth_date > today:
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self._validation_errors.append('出生日期不能在未来')
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if self.enrollment_date > today:
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self._validation_errors.append('入学日期不能在未来')
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if self.birth_date > self.enrollment_date:
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self._validation_errors.append('入学日期不能早于出生日期')
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@property
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def is_valid(self) -> bool:
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return len(self._validation_errors) == 0
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def get_errors(self) -> list[str]:
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return self._validation_errors.copy()
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def __eq__(self, other) -> bool:
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if not isinstance(other, Student):
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return NotImplemented
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return (self.sid == other.sid and
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self.name == other.name and
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self.height == other.height and
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self.birth_date == other.birth_date and
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self.enrollment_date == other.enrollment_date and
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self.class_name == other.class_name
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)
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@classmethod
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def from_dict(cls, data: dict) -> 'Student':
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birth_date = data['birth_date'] if isinstance(data['birth_date'], date) else date.fromisoformat(
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data['birth_date'])
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enrollment_date = data['enrollment_date'] if isinstance(data['enrollment_date'], date) else date.fromisoformat(
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data['enrollment_date'])
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return cls(
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sid=data['sid'],
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name=data['name'].strip(),
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height=data['height'],
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birth_date=birth_date,
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enrollment_date=enrollment_date,
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class_name=data['class_name']
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)
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def to_dict(self):
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return {
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'sid': self.sid,
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'name': self.name,
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'height': self.height,
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'birth_date': self.birth_date.isoformat(),
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'enrollment_date': self.enrollment_date.isoformat(),
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'class_name': self.class_name
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}
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def __repr__(self) -> str:
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return (
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f"{self.__class__.__name__}("
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f"sid='{self.sid}', "
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f"name='{self.name}',"
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f"height={self.height},"
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f"birth_date=date({self.birth_date.year},{self.birth_date.month},{self.birth_date.day}), "
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f"enrollment_date=date({self.enrollment_date.year},{self.enrollment_date.month},{self.enrollment_date.day}), "
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f"class_name='{self.class_name}'"
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f")"
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)
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