/// <summary>
/// 获取客服后用户登录留存信息
/// </summary>
/// <param name="stDate"></param>
/// <param name="edDate"></param>
/// <returns></returns>
public static string GetCareRetention(DateTime stDate, DateTime edDate, string dateType, string usrName)
{
UserRetentionModel careRetentionModel = new UserRetentionModel();
careRetentionModel = CustomerCareBLL.GetCareRetention(stDate, edDate, dateType, usrName);
return(CommonLib.Helper.JsonSerializeObject(careRetentionModel));
}
