引用命名空间：
using System.Data.SQLite;
using System.Data.SQLite.Generic;
using System.Data.Common;
 
    /// <summary>
    ///【测试方法】 简答的测试SQLite数据库及表的创建过程
    /// </summary>
    [TestMethod()]
    public void Test()
    {
      string strConnectionString = string.Empty,/*SQLite连接字符串，刚开始没有，暂时留空*/
          strDataSource = @"D:\test.db";//SQLite数据库文件存放物理地址
      //用SQLiteConnectionStringBuilder构建SQLite连接字符串
      System.Data.SQLite.SQLiteConnectionStringBuilder scBuilder = new SQLiteConnectionStringBuilder();
      scBuilder.DataSource = strDataSource;//SQLite数据库地址
      scBuilder.Password = "123456";//密码
      strConnectionString = scBuilder.ToString();
      using (SQLiteConnection connection = new SQLiteConnection(strConnectionString))
      {
        //验证数据库文件是否存在
        if (System.IO.File.Exists(strDataSource) == false)
        {
          //创建数据库文件
          SQLiteConnection.CreateFile(strDataSource);
        }
        //打开数据连接
        connection.Open();
        //Command
        SQLiteCommand command = new SQLiteCommand(connection);
        command.CommandText = "CREATE TABLE tb_User(ID int,UserName varchar(60));INSERT INTO [tb_User](ID,UserName) VALUES(1,'A')";// "CREATE TABLE tb_User(ID int,UserName varchar(60));";
        command.CommandType = System.Data.CommandType.Text;
        //执行SQL
        int iResult = command.ExecuteNonQuery();
        //可省略步骤=======关闭连接
        connection.Close();
      }
    }