我的錯誤: Field 'StockManagement.LargeItems1.largeS' is never assigned to, and will always have its default value null
我的代碼:字段「XXX」從未分配,並且將永遠有它的默認值空
namespace StockManagement
{
class LargeItems1
{
private Stack<string> largeS;
public LargeItems1()
{
Stack<string> largeS = new Stack<string>();
}
public void LargeItemsAdd()
{
string usersInput2, tempValue;
int tempValueI = 0;
bool attempt = false;//, whichOne = false;
Console.WriteLine("Would you like to remove or add an item to the storage area \n Reply add OR remove");
string usersInput = Console.ReadLine();
usersInput = usersInput.ToLower();
if (usersInput.Contains("remove"))
{
LargeItemsRemove(largeS);
return;
}
else if (usersInput.Contains("add"))
{
Console.WriteLine("Please input (numerically) how many IDs you'd like to add");
tempValue = Console.ReadLine();
attempt = int.TryParse(tempValue, out tempValueI);
while (!attempt)
{
Console.WriteLine("Please input (numerically) how many IDs you'd like to add, you did not input a numeric value last time");
tempValue = Console.ReadLine();
attempt = int.TryParse(tempValue, out tempValueI);
}
for (int i = 0; i < tempValueI; i++)
{
Console.WriteLine("Please input the ID's (one at a time) of the item you would like to add");
usersInput2 = Console.ReadLine();
if (largeS.Contains(usersInput2))
{
Console.WriteLine("That ID has already been stored");
}
else
{
largeS.Push(usersInput2);
}
}
foreach (var item in largeS)
{
Console.WriteLine("Current (large) item ID's: " + item);
}
}
}
public void LargeItemsRemove(Stack<string> largeS)
{
if (largeS.Contains(null))
{
Console.WriteLine("No IDs stored");
}
else
{
string popped = largeS.Pop();
foreach (var item in largeS)
{
Console.WriteLine("Pop: " + item);
}
Console.WriteLine("Removed ID = " + popped);
}
}
}
}
我不明白怎麼我的值賦給實例。我會很感激任何可以提供的幫助!
您需要將其定義爲_field_或_property_,而不是構造函數中的局部變量。 http://msdn.microsoft.com/en-us/library/ms173118.aspx編輯:一般類的更多信息:http://msdn.microsoft.com/en-us/library/x9afc042.aspx EDITx2:哎呀,錯過了它被宣佈爲一個領域的事實,我現在看到格式是固定的;謝謝Tim。 –