#region 测试 数组类型的      string[] mobiles = new string[] { "18975887650", "18775887650", "18977487650", "18975887512" };      /// 
      /// 循环获取多个手机号逗号分开      /// 
      /// 
           public string GetMobile()      {          string strmobile = "";          for (int i = 0; i < mobiles.Length; i++)          {              strmobile += mobiles[i] + ",";          }          if (strmobile.Length > 0)          {              strmobile = strmobile.Substring(0, strmobile.Length - 1);              return strmobile;          }          return strmobile;      }           #endregion

数据库中获取：

#region 多个手机号      /// 
      /// 获取用户电话号码 数据库中获取 数组中多个手机号逗号分开      /// 
      public string GetMobileNumber()      {          string strmobilenumbers = "";          DataTable dt = jub.Get_Mobile(mu.MobileNumber);          //从数据库中读取手机信息数据          // mobiles = dt.Rows[0]["MobileNumber"].ToString();          //定义数组          string[] mobilenumbers = new string[dt.Rows.Count];          if (dt.Rows.Count > 0)          {              //循环数据              for (int i = 0; i < dt.Rows.Count; i++)              {                  DataRow dr = dt.Rows[i];                  mobilenumbers[i] = dr["MobileNumber"].ToString();//为数组赋值                  strmobilenumbers += mobilenumbers[i] + ",";              }              if (strmobilenumbers.Length > 0)              {                  strmobilenumbers = strmobilenumbers.Substring(0, strmobilenumbers.Length - 1);                  return strmobilenumbers;              }              return strmobilenumbers;          }          return strmobilenumbers;      }      #endregion