修改接口

FutureMailAPI/TestDB.cs

@@ -0,0 +1,28 @@
+using Microsoft.Data.Sqlite;
+using System;
+
+namespace TestDB
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            using (var connection = new SqliteConnection("Data Source=FutureMail.db"))
+            {
+                connection.Open();
+                
+                var command = connection.CreateCommand();
+                command.CommandText = "PRAGMA table_info(Users)";
+                
+                using (var reader = command.ExecuteReader())
+                {
+                    Console.WriteLine("Users表结构:");
+                    while (reader.Read())
+                    {
+                        Console.WriteLine($"列名: {reader[1]}, 类型: {reader[2]}, 是否非空: {reader[3]}, 默认值: {reader[4]}, 主键: {reader[5]}");
+                    }
+                }
+            }
+        }
+    }
+}