Waɗannan su ne nau'o'in nau'i uku daban-daban a cikin C#: enum (saiti mai suna na ƙimomin ainihi), struct (nau'in ƙima don karamin bayanai), da class (nau'in nshiga don abubuwa). Zabar daidai ya dogara da bayanai da hali da kuke ƙirar.n
Status { Active, Inactive, Pending }
Status s = Status.Active;
(s == Status.Active) { }
Permissions { Read = , Write = , Execute = }
enum yana bayyana ƙayyadaddun saiti na ƙimomin suna — ainihi masu nau'i don abubuwa kamar jimloli, matsayin, ko zaɓuwa (maye gurbin lambobi/jimlolin ajaiba). Yana da nau'in ƙima da likitacciyar lambobi.
public struct Point // VALUE type — copied by value, no heap allocation
{
public int X { get; }
public int Y { get; }
public Point(int x, int y) { X = x; Y = y; }
}
Point p1 = new(1, 2);
Point p2 = p1; // COPIES the whole struct (independent)
struct nau'in ƙima ne — ajiyewa a jiya (sau da yawa a kan tulin), antacciyar ƙima, babu ajiyar tudu. Mafi kyau don ƙarami, ainihi, bayanai-kamar ƙimomin (haɗi, kuɗi, kwana) inda semanntik ƙima da guje jiyar tudu suna taimakawa aiki.
public class User // REFERENCE type — on the heap, copied by reference
{
public string Name { get; set; }
public void DoWork() { } // rich behavior
}
User u1 = new() { Name = "Ann" };
User u2 = u1; // both reference the SAME object
class nau'in nshiga ne — a tudu, antacciyar nshiga (daidaicewa), goyan bayan gida da aiki masu yawa. Zabar na gida ga yawancin abubuwa masu asali, aiki, da jimre masu canji.
enum → a fixed set of named constants (states, roles, options)
struct → small, immutable data values; value semantics; avoid heap allocation
(keep small — large structs are costly to copy)
class → most objects: identity, behavior, inheritance, mutable/larger state (the default)
Zabar nau'in nau'i daidai — enum, struct, ko class — babbar yanke shawara ta C# wanda ya shafar daidaito, semanntik, da aiki, don haka fahimtar bambanci yana da mahimmanci. Enums suna ba da lambobi mai nau'i na suna (don jimloli, matsayin, zaɓuwa), da kyau sosai fiye da lambobi ajaiba marasa kariya ko jimloli — kayan ƙira mai karambun gida.
Banbancin struct da class yana da mahimmanci musamman saboda yana ba da shawarar ƙima da nshiga semanntik: structures nau'in ƙima ne (antacciyar ƙima, ajiyewa a jiya, babu ajiyar tudu) da suiton ƙarami ainihi bayanai inda semanntik ƙima da rage ajiya suna taimakawa aiki, daidai da classes nau'in nshiga ne (daidaicewa ta nshiga, ajiyar tudu, goyan bayan gida da aiki masu yawa) — zabar na gida ga yawancin abubuwa masu asali da aiki.
Zabar rashin daidai yana da sakamako na gaske: struct mai girma yana da tsada a antawa, da amfani da struct inda ana sa'a nshiga semanntik (ko sabansu) yana haifar da rashin gida mahaukaci.
Fahimta yaushe za a amfani da kowa — enum don ƙayyadaddun tsofaffin saiti, struct don ƙarami bayanai-kamar ƙimomin (ajiye karami), class ga yawancin abubuwa (zabar na gida) — da ƙima-da-nshiga shawarwarin yana mahimmanci ilimi don ƙirar bayanai daidai da aiki a C#. // Da yaushe wannan zabar ya bayyana duk da kuka bayyana nau'i, da yayin da yawa semanntik nshiga yauni yawancin aiki na C#, sanin bambanci da daidaicin amfani na enums, structs, da classes ƙomi, maimaitawa-daidai ilimi da jiya muhimma ta hira mai kalalici yana nuni wa fahimtar nau'in ƙima na C#.