void CRecord::InputIncomeRecord()//增加收入数据
{
    int year,month,day;
	double income;
	char purpose[20];
	cout<<"请输入日期：(例如:2012 2 29)";
	cin>>year>>month>>day;
	while(!IsDateRight(year,month,day))
	{
		cout<<"日期不正确!请重新输入：(例如:2012 2 29)";
		cin>>year>>month>>day;
    }
    cout<<"请输入收入金额：";
	cin>>income;
	cout<<"请输入来源：";
	cin>>purpose;
	
	CFinance*pfinance=new CFinance;
	pfinance->SetFinance(year,month,day,income,0,purpose);
    CNode*pnode=new CNode;
	pnode->InputData(pfinance);
    list.Insert(pnode);
    cout<<"添加成功!"<<endl;
	list.CalBalance();

	}



	
bool IsDateRight(int year,int month,int day)//判断日期是否正确的函数
{
	if(year<999||year>3000)return false;
	if(month<0||month>12)return false;
	int DaysInMonth;
	switch(month)
	{
		case1:
		case3:
		case5:
		case7:
		case8:
		case10:
		case12:DaysInMonth=31;break;
		case4:
		case6:
		case9:
		case11:DaysInMonth=30;break;
		case2:
		    {
		    	if(year%4==0&&year%400!=0)DaysInMonth=29;
				else DaysInMonth=28;
				break;
			}
	}
	if(day<0||day>DaysInMonth)return false;
	return true;
}
请问哪里出错了，不管输入什么都是提示我输入日期不正确并让我重新输入