增加了分页查询，性别输入校验

schemas/student.py

@@ -1,7 +1,8 @@
-from pydantic import BaseModel
 from datetime import date
 from pydantic import BaseModel, ConfigDict, Field, model_validator
+from typing import Literal
 
+#新建学生请求体
 class StudentCreate(BaseModel):
     student_no: str | None = Field(default=None, min_length=1, max_length=50)
     student_name: str = Field(min_length=1, max_length=50)
@@ -14,7 +15,7 @@ class StudentCreate(BaseModel):
     graduation_date: date | None = None
     education: str | None = Field(default=None, max_length=50)
     age: int = Field(ge=0, le=150)
-    gender: str = Field(min_length=1, max_length=10)
+    gender: Literal["男", "女"]
 
     @model_validator(mode="after")
     def check_dates(self):
@@ -23,18 +24,19 @@ class StudentCreate(BaseModel):
             raise ValueError("毕业日期不能早于入学日期")
         return self
 
+#更新学生请求体
 class StudentUpdate(BaseModel):
     # 全部设为可选，前端只传需要修改的字段
-    student_no: str | None = None
-    student_name: str | None = None
-    class_id: int | None = None
-    consultant_id: int | None = None
-    native_place: str | None = None
-    graduation_school: str | None = None
-    major: str | None = None
-    enrollment_date: date | None = None
-    graduation_date: date | None = None
-    education: str | None = None
-    age: int | None = None
-    gender: str | None = None
+        student_no: str | None = Field(default=None, min_length=1, max_length=50)
+        student_name: str | None = Field(default=None, min_length=1, max_length=50)
+        class_id: int | None = Field(default=None, gt=0)
+        consultant_id: int | None = Field(default=None, gt=0)
+        native_place: str | None = Field(default=None, max_length=100)
+        graduation_school: str | None = Field(default=None, max_length=100)
+        major: str | None = Field(default=None, max_length=100)
+        enrollment_date: date | None = None
+        graduation_date: date | None = None
+        education: str | None = Field(default=None, max_length=50)
+        age: int | None = Field(default=None, ge=0, le=150)
+        gender: Literal["男", "女"] | None = None