//增加预算
 public static bool AddBudget(string budgetDate,double budgetNum)
 {
     string sql = String.Format(@"insert into budget(budgetDate,budgetNum)
                                  values('{0}',{1})", budgetDate, budgetNum);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //增加账目
 public static bool AddAccount(double accNum,string accDate,int classAccID,int userID,string accCon)
 {
     string sql = String.Format(@"insert into account(accNum,accDate,classAccID,userID,accCon)
                                  values('{0}','{1}',{2},{3},'{4}')", accNum,accDate,classAccID,userID,accCon);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //增加分类
 public static bool AddAccClass(string classAccName, string classAccInOut)
 {
     string sql = String.Format(@"insert into classAcc(classAccName,classAccInOut)
                                  values('{0}','{1}')", classAccName, classAccInOut);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 /// <summary>
 /// 更改账户密码
 /// </summary>
 public static bool UPUserPsd(string userName, string userPsd)
 {
     string sql = String.Format("update users set userPsd='{0}' where userName='******'", userPsd, userName);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //删除预算
 public static bool DelBudget(int budgetID)
 {
     string sql = String.Format(@"delete budget where budgetID={0}", budgetID);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //删除账目
 public static bool DelAccount(int accID)
 {
     string sql = String.Format(@"delete account where accID={0}", accID);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //删除分类
 public static bool DelAccClass(int classAccID)
 {
     string sql = String.Format(@"delete classAcc where classAccID={0}", classAccID);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //修改预算
 public static bool UPBudget(string budgetDate, double budgetNum)
 {
     string sql = String.Format(@"update budget set budgetNum={0} where
                                  budgetDate='{1}'", budgetNum, budgetDate);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //修改账目
 public static bool UPAccount(int accID,double accNum, string accDate, int classAccID, int userID, string accCon)
 {
     string sql = String.Format(@"update account set accNum={0},accDate='{1}',classAccID={2},userID={3},accCon='{4}'
                                  where accID={5}", accNum, accDate, classAccID, userID, accCon,accID);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }
 //修改余额下限制
 public static bool UPAccLimit(double accLimitNum)
 {
     string sql = String.Format(@"update accLimit set accLimitNum={0}", accLimitNum);
     ManagerHelper mHelper = new ManagerHelper();
     return mHelper.ExecuteSql(sql);
 }