學用 ASP.Net 之 System.Collections.Queue 與 Stack 類

Queue(隊列)是先進先出的集合; Stack(堆棧)是後進先出的集合.
Queue 的主要成員:

/* 屬性 */Count      //元素數/* 方法 */Clear()    //清空Contains() //是否包含Dequeue()  //出列Enqueue()  //入列Peek()     //擷取將要出列的

Stack 的主要成員:

/* 屬性 */Count           ///* 方法 */Clear()         //Contains()      //Peek()          //擷取將要出棧的Pop()           //出棧Push()          //壓棧

Queue 測試:

protected void Button1_Click(object sender, EventArgs e){    Queue queue = new Queue();    queue.Enqueue("abc");    queue.Enqueue(123);    queue.Enqueue(true);    string str = "";    foreach (object obj in queue)    {        str += obj.ToString() + "; ";    }    TextBox1.Text = str; //abc; 123; True; }protected void Button2_Click(object sender, EventArgs e){    Queue queue = new Queue();    queue.Enqueue("AA");    queue.Enqueue("BB");    queue.Enqueue("CC");    queue.Enqueue("DD");    string s1 = queue.Dequeue().ToString(); //AA    int n1 = queue.Count; //3    string s2 = queue.Peek().ToString();    //BB    int n2 = queue.Count; //3    string s3 = queue.Dequeue().ToString(); //BB    int n3 = queue.Count; //2    queue.Clear();    int n4 = queue.Count; //0    TextBox1.Text = string.Concat(s1, "\n", n1, "\n", s2, "\n", n2, "\n", s3, "\n", n3, "\n", n4);}

Stack 測試:

protected void Button1_Click(object sender, EventArgs e){    Stack stack = new Stack();    stack.Push("AA");    stack.Push("BB");    stack.Push("CC");    string s1 = stack.Pop().ToString();  //CC    stack.Push("DD");    string s2 = stack.Pop().ToString();  //DD    string s3 = stack.Peek().ToString(); //BB    string s4 = stack.Pop().ToString();  //BB    int n = stack.Count;                 //1    bool b = stack.Contains("AA");       //True    TextBox1.Text = string.Concat(s1, "\n", s2, "\n", s3, "\n", s4, "\n", n, "\n", b);}