在c#数组中查找数据的问题
本文关键字：数据 问题 查找 数组 | 更新日期: 2023-09-27 18:12:15
我需要编写一个计算一顿饭价格的程序，这个程序需要保存100条饭的记录，并且可以编辑、查找、删除。问题是，即使我输入信息，我也找不到它或显示成本。这是我代码的一部分，因为我不能输入所有行代码，这是我的完整代码链接:http://ideone.com/1EGzyB
//Add an record to array:
static void AddFunction(string[] ClientNameArray, string[] AddressArray, string[] PhoneNumberArray, int[] NumberOfGuestsArray, string[] MealTypeArray, int[] YearArray, int[] MonthArray, int[] DayArray, ref int NextAvailablePosition)
{
string ClientName = "";
string Address = "";
string PhoneNumber = "";
int NumberOfGuests = 0;
string MealType = "";
int Year = 0;
int Month = 0;
int Day = 0;
bool ParseResult = false;
bool ErrorFlag = false;
string UserResponse = ""; // Used to hold temp values entered from the keyboard that will be converted or modified before storing a value
int MaxDays = 0; // Used to store the maximum number of days in any given month
string MonthName = "";
do
{
ErrorFlag = false;
Console.Write("Name of client : ");
ClientName = Console.ReadLine();
if (ClientName == "")
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Client Name must not be left blank.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
do
{
ErrorFlag = false;
Console.Write("Address of function : ");
Address = Console.ReadLine();
if (Address == "")
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Address must not be left blank.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
do
{
ErrorFlag = false;
Console.Write("Contact telephone number : ");
PhoneNumber = Console.ReadLine();
if (PhoneNumber == "")
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Phone Number must not be left blank.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
do
{
ErrorFlag = false;
Console.Write("Number of guests : ");
UserResponse = Console.ReadLine();
ParseResult = int.TryParse(UserResponse, out NumberOfGuests);
if (ParseResult == false)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Not a valid number.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
else if (NumberOfGuests <= 0 || NumberOfGuests > 100)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Number of Guests must be a number greater than 0 and not more than 100.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
do
{
ErrorFlag = false;
Console.WriteLine("Meal type - Enter ");
Console.WriteLine(" F for Finger food,");
Console.WriteLine(" 2 for 2 course,");
Console.WriteLine(" 3 for 3 course or");
Console.Write(" B for Banquet) : ");
MealType = Console.ReadLine();
MealType = MealType.ToUpper();
if (MealType != "F" && MealType != "2" && MealType != "3" && MealType != "B")
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Meal type must be one of F, 2, 3, or B. Press ENTER to exit");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
// Get the date as a year, month and day in that order as integers
// Validate the year by checking that it is 2015 or later
do
{
ErrorFlag = false;
Console.WriteLine("Date of function");
Console.Write(" Year : ");
UserResponse = Console.ReadLine();
ParseResult = int.TryParse(UserResponse, out Year);
if (ParseResult == false)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Not a valid number.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
else if (Year < 2015)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("That year has already passed. Please enter a year from 2015 onwards'r'n... or invent a time machine to go back to the year you entered :)");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
// Validate the month by checking that it is between 1 and 12 inclusive
do
{
ErrorFlag = false;
Console.Write(" Month : ");
UserResponse = Console.ReadLine();
ParseResult = int.TryParse(UserResponse, out Month);
if (ParseResult == false)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Not a valid number. Press ENTER to exit");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
else if (Month < 1 || Month > 12)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("The month must be between 1 and 12 inclusive. Press ENTER to exit");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
// Work out how many days there are in the selected month
switch (Month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12: MaxDays = 31;
break;
case 4:
case 6:
case 9:
case 11: MaxDays = 30;
break;
case 2:
// Check for the number of days in February
// If the year is evenly divisible by 4 it is a leap year
if (Year % 4 == 0)
MaxDays = 29;
else
MaxDays = 28;
break;
default:
// This should never occur
Console.WriteLine("An unexpected error has occurred. Press ENTER to exit");
Console.ReadLine();
Environment.Exit(0);
break;
}
// Validate the Day by checking that it is a positive integer and that it does not exceed the length of the month
do
{
ErrorFlag = false;
Console.Write(" Day : ");
UserResponse = Console.ReadLine();
ParseResult = int.TryParse(UserResponse, out Day);
if (ParseResult == false)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Not a valid number.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
else if (Day <= 0)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Day must be 1 or greater.");
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
else if (Day > MaxDays)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Invalid date. {0} has {1} days.", MonthName, MaxDays);
Console.ForegroundColor = ConsoleColor.White;
ErrorFlag = true;
}
} while (ErrorFlag);
ClientName = ClientNameArray[NextAvailablePosition];
Address = AddressArray[NextAvailablePosition];
PhoneNumber = PhoneNumberArray[NextAvailablePosition];
NumberOfGuests = NumberOfGuestsArray[NextAvailablePosition];
MealType = MealTypeArray[NextAvailablePosition];
Year = YearArray[NextAvailablePosition];
Month = MonthArray[NextAvailablePosition];
Day = DayArray[NextAvailablePosition];
}
static void FindFunction(string[] ClientNameArray, string[] AddressArray, string[] PhoneNumberArray, int[] NumberOfGuestsArray, string[] MealTypeArray, int[] YearArray, int[] MonthArray, int[] DayArray, int ARRAY_SIZE, ref int CurrentRecord)
{
string ClientName = "";
Console.Write("Enter name of customers that you want to find: ");
ClientName = Console.ReadLine();
if (ClientNameArray[CurrentRecord] == ClientName)
{
Console.WriteLine("Name of Customers: ", ClientNameArray[CurrentRecord]);
Console.WriteLine("Address : ", AddressArray[CurrentRecord]);
Console.WriteLine("Phone Number : ", PhoneNumberArray[CurrentRecord]);
Console.WriteLine("Meal Type : ", MealTypeArray[CurrentRecord]);
Console.WriteLine("Number of Guests: ", NumberOfGuestsArray[CurrentRecord]);
Console.WriteLine("Date: {0} / {1} / {2}", DayArray[CurrentRecord], MonthArray[CurrentRecord], YearArray[CurrentRecord]);
}
else
{
Console.Write("Not found! Try another name.");
}
}
没有循环遍历数组。您所比较的只是客户端名称与当前记录
if (ClientNameArray[CurrentRecord] == ClientName)
while(not the end of the array)
{
if (ClientNameArray[CurrentRecord] == ClientName)
{
Do stuff
}
}
你应该有一个数组来存储一个类型为RestaurantVisit(或类似的东西)的对象，RestaurantVisit将有客户端名称，地址等属性