1. 水晶易表不能识别WS接口返回的DataTable或DataSet数据类型，会提示“无法加载URL”

3. C#调用Oracle的Package，并返回数据列表

2. 经查证，可以接受string类型的，如果需要返回数据列表，那么需要借助数组来返回，代码实现如下：

public WeekSale_Table GetData(string skc1, string skc2, string week1, string week2, string week3, string week4)        {            try            {
    　　　　　　　　　//C#调用Oracle的包，返回数据列表                OracleConnection orcn = new OracleConnection(ConfigurationManager.AppSettings["SAPBI"].ToString());                OracleCommand cmd = new OracleCommand("pkg_cx_Productlifecycle.skcweeksale", orcn);                cmd.CommandType = CommandType.StoredProcedure;                OracleParameter ip0 = new OracleParameter("skc1", OracleType.VarChar);                OracleParameter ip1 = new OracleParameter("skc2", OracleType.VarChar);                OracleParameter ip2 = new OracleParameter("week1", OracleType.VarChar);                OracleParameter ip3 = new OracleParameter("week2", OracleType.VarChar);                OracleParameter ip4 = new OracleParameter("week3", OracleType.VarChar);                OracleParameter ip5 = new OracleParameter("week4", OracleType.VarChar);                ip0.Value = skc1;                ip1.Value = skc2;                ip2.Value = week1;                ip3.Value = week2;                ip4.Value = week3;                ip5.Value = week4;                cmd.Parameters.Add(ip0);                cmd.Parameters.Add(ip1);                cmd.Parameters.Add(ip2);                cmd.Parameters.Add(ip3);                cmd.Parameters.Add(ip4);                cmd.Parameters.Add(ip5);                OracleParameter p1 = new OracleParameter("p_rc", OracleType.Cursor);                p1.Direction = System.Data.ParameterDirection.Output;                cmd.Parameters.Add(p1);                OracleDataAdapter command = new OracleDataAdapter(cmd);                DataSet ds = new DataSet();                command.Fill(ds, "Table");                DataTable dt = ds.Tables["Table"];                WeekSale_Table wt = new WeekSale_Table();                wt.row = new WeekSale_Row[dt.Rows.Count];                int rcount = dt.Rows.Count;                for (int i = 0; i < rcount; i++)                {                    DataRow dr = dt.Rows[i];                    WeekSale_Row row = new WeekSale_Row();                    row.DISCOUNT1 = dr["DISCOUNT1"].ToString();                    row.DISCOUNT2 = dr["DISCOUNT2"].ToString();                    row.FCALCSUMS1 = dr["FCALCSUMS1"].ToString();                    row.FCALCSUMS2 = dr["FCALCSUMS2"].ToString();                    row.NUMS1 = dr["NUMS1"].ToString();                    row.NUMS2 = dr["NUMS2"].ToString();                    row.SKC1 = dr["SKC1"].ToString();                    row.SKC2 = dr["SKC2"].ToString();                    row.WEEK = dr["WEEK"].ToString();                    row.WEEKS = dr["WEEKS"].ToString();                    wt.row[i] = row;                }                return wt;            }            catch            {                return null;            }        }

//定义Row，一行 public class WeekSale_Row    {        public string WEEKS;        public string SKC1;        public string SKC2;        public string FCALCSUMS1;        public string FCALCSUMS2;        public string NUMS1;        public string NUMS2;        public string DISCOUNT1;        public string DISCOUNT2;        public string WEEK;    }//定义Tablepublic class WeekSale_Table    {        public WeekSale_Row[] row;    }