python manage.py makemigrations #生成表结构（py）
python manage.py makemigrations user #生成表结构（py）指定子项目
python manage.py migrate #同步到数据库

插入测试数据，可以自己写页面来插入数据

也可以使用Django自带的后台管理，来操作数据表

python manage.py createsuperuser

http://127.0.0.1:8000/admin

from django.contrib import admin
from . import models

Register your models here.

class categoryAdmin(admin.ModelAdmin):
list_display = ['id', 'name', 'create_time', 'update_time'] # 定义在admin后台展示那些字段，但字段必须是存在的
list_filter = ['name'] # 根据name字段过滤
search_fields = ['name'] # 根据name字段筛选

class articleAdmin(admin.ModelAdmin):
list_display = ['id', 'title', 'content', 'read_count', 'create_time', 'update_time']
list_filter = ['title']
search_fields = ['title']

admin.site.register(models.Category, categoryAdmin)
admin.site.register(models.Article,articleAdmin)

admin.site.site_title = 'sky' # 修改页面标题
admin.site.site_header = 'sky后台管理' # 修改admin后台标题