这个参数为表达式树的方法如何调用
接口代码如下:
/// <summary>
/// 两张表关联查询
/// </summary>
/// <typeparam name="T1">第二张表的实体类型</typeparam>
/// <typeparam name="TResult">返回的数据类型</typeparam>
/// <param name="join">join表达式</param>
/// <param name="select">查询字段表达式</param>
/// <param name="where">查询条件表达式</param>
/// <param name="orders">排序列表</param>
/// <returns></returns>
List<TResult> Queryable<T1, TResult>(Expression<Func<T, T1, object[]>> join, Expression<Func<T, T1, TResult>> select, Expression<Func<T, T1, bool>> where = null, List<Expression<Func<T, T1, object>>> orders = null);
帮忙给一个调用写法