from typing import Annotated
from pydantic import BaseModel, Field, ValidationError

# 用Annotated结合Field设置范围约束，兼具注释和运行时校验能力
Age = Annotated[int, Field(ge=0, le=150, description="年龄，范围0-150")]

class Person(BaseModel):
    name: str
    age: int
    age2: Age

try:
    p = Person(name="z3", age=11, age2=188)
    print(p)
except ValidationError as e:
    print("数据校验失败：")
    print(e)