原文链接 背景 type AData struct { A string `json:"a"` } type BData struct { B string `json:"b"` } type Message struct { Name string `json:"name"` Id int `json:"id"` Data interface{} `json:"data"` } 对于 interface
使用let赋值给临时变量 var dailys = from f in _postgreDbContext.draws let temp = f.review_time.Value.Date where f.time_Data != null && f.time_Data == temp group f by new { f.id, f.time_Data } into g select new { Date = g.Key.time_Data, g.Key.id, draws_money