string.Format , object[] args 使用

string sql = "insert into TableA values('{0}','{1}','{2}',GetDate(),'{3}'  ";

       sql = string.Format(sql, apiCompany, forCompany, apiName, xmlDate);

       sqlHelper.ExcuteNonequery(sql);

string sql = string.Empty;

object[] args = new object[]

{

     Company,

     sku,

     altSku,

     "1",

     "Interface",

     System.DateTime.Now

};

sql += string.Format(@"INSERT INTO TableB(COMPANY,SKU,ALTSKU,Active,add_usr,add_date)

                                   VALUES(N'{0}',N'{1}',N'{2}',N'{3}',N'{4}','{5}');", args);

sqlHelper.ExcuteNonequery(sql);