摘要: 今天在学习android数据库,运行程序的时候报错,错误是:Entities and POJOs must have a usable public constructor. You can have an empty constructor or a constructor whose param 阅读全文
posted @ 2021-03-10 17:22 lbjhrzgj 阅读(265) 评论(0) 推荐(0) 编辑