摘要: 提问 如何Linq左连接 回答 注意 into 推荐返回匿名类型 var query = from person in people join pet in pets on person equals pet.Owner into gj from subpet in gj.DefaultIfEmpt 阅读全文
posted @ 2023-03-23 14:28 喜爱糖葫芦 阅读(16) 评论(0) 推荐(0) 编辑