家庭作业 | AppMaster

{ "en": "/course-library/crash-course-101/crash-course-module3-homework", "fr": "/fr/course-library/crash-course-101/crash-course-module3-homework-fr", "es": "/es/course-library/crash-course-101/curso-intensivo-modulo3-deberes", "de": "/de/course-library/crash-course-101/crashkurs-modul3-hausaufgaben", "ru": "/ru/course-library/crash-course-101/domashnee-zadanie-crash-course-module3", "ja": "/ja/course-library/crash-course-101/kuratsushiyukosumodule3-su-ti", "ko": "/ko/course-library/crash-course-101/dangijibjunggwajeong-modyul3-sugje", "zh": "/zh/course-library/crash-course-101/beng-kui-ke-cheng-mo-kuai-3de-zuo-ye", "pt": "/pt/course-library/crash-course-101/modulo-de-curso-intensivo3-trabalho-de-casa", "hi": "/hi/course-library/crash-course-101/kraish-kors-monddyuul3-homvrk", "bn": "/bn/course-library/crash-course-101/kryaash-kors-mddiul3-homoy-aark", "ar": "/ar/course-library/crash-course-101/whd-dwr-mkthf-3-wjb-mnzly", "id": "/id/course-library/crash-course-101/modul-kursus-kilat3-pekerjaan-rumah", "tr": "/tr/course-library/crash-course-101/hizlandirilmis-kurs-modulu3-odevi", "it": "/it/course-library/crash-course-101/corso-intensivo-modulo3-compiti-a-casa", "pl": "/pl/course-library/crash-course-101/crash-course-modul-3-zadanie-domowe", "vi": "/vi/course-library/crash-course-101/bai-tap-ve-khoa-hoc-sup-do-mo-dun-3", "nl": "/nl/course-library/crash-course-101/spoedcursus-module3-huiswerk", "th": "/th/course-library/crash-course-101/khwaamphidphlaadkh-nghlaksuutromduul-3-kaarbaan" }

想象一下，你需要为一个在线商店开发一个应用程序。创建一个数据库模型，使其工作。

有必要为商品的可用性提供描述卡片，各种类别的商品，关于订单和客户的信息。
用各种类型的字段填充表（至少使用5种类型）。
建立表之间的关系。使用所有3种关系类型。