public void BuildFilters()
{
var builder = new ExpressionBuilder <User>();
var filters = new List <SqlFilter>();
filters.Add(SqlFilter.Create("Id", Operation.Equal, 1));
filters.Add(SqlFilter.Create("LastLoginDate", Operation.GreaterThan, DateTime.Now));
filters.Add(SqlFilter.Create("Username", Operation.Like, "aaaa"));
filters.Add(SqlFilter.Create("Id", Operation.List, new int[] { 1, 2, 3 }));
filters.Add(SqlFilter.Create("Password", Operation.NotEqual, "1"));
filters.Add(SqlFilter.Create("Status", Operation.List, new int[] { 1 }));
var where = builder.Build(filters, new Dictionary <string, string>());
var results = db.Set <User>().Where(where).ToList();
Console.WriteLine(results.Count + "条数据");
}