C # hash table, queue, stack

Hash table

Does not specify the length, does not specify the type, does not specify the type of key

Hashtable ht = new Hashtable ();
Ht[' a '] = 1;
Ht[0] = "B";
Ht["B"] = ' C ';
HT[1] = "D";
Ht. ADD (1, "D");
HT[1] = "X";
foreach (Var x in HT. keys) keys, key value, value
{
Console.WriteLine (x);
}

Queue

Advanced First Out

Queue line = new Queue ();

Line. Enqueue ("");

Console.WriteLine (line. Dequeue ());

Stack

Advanced Post-out

Stack<string> st = new Stack<string> ();

St. Push ("");

Console.WriteLine (St. Pop ());

Class

Class lei{

puplic int i=1;

}

Structural body

struct jie{

puplic Int J;

}

Enumeration

Enum Week
{
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
}

struct instantiation
Lei L1 = new lei ();
Jie J1 = new Jie ();
l1.i = 2;
J1.J = 1;
Enum type
Week W1 = new Week ();

C # hash table, queue, stack