C#入门及进阶|数组和集合（九）：Stack类

        在C#中，通过类Stack来封装对栈的操作，使得对栈的操作变得非常简单和容易理解。

        栈是按照“后进先出”的原则来操作元素。
        栈集合常用的属性和方法:

        通过方法Push、Pop就能实现栈的入栈和退栈操作，通过方法Peek就能获取栈顶的元素。

        Stack类实例:

public static void Main()
{
    // Creates and initializes a new Stack.
    Stack myStack = new Stack();
    myStack.Push( "Cristiano" );
    myStack.Push( "is" );
    myStack.Push( "the" );
    myStack.Push( "best" );
    // Displays the Stack.
    Console.Write( "Stack values:" );
    PrintValues( myStack, '\t' );
    // Removes an element from the Stack.
    Console.WriteLine("(Pop)\t\t{0}", myStack.Pop());
    // Displays the Stack.
    Console.Write( "Stack values:" );
    PrintValues( myStack, '\t' );
    // Views the first element in the Stack but does not remove it.
    Console.WriteLine("(Peek)\t\t{0}",myStack.Peek());
    // Displays the Stack.
    Console.Write( "Stack values:" );
    PrintValues( myStack, '\t' );
}
public static void PrintValues(Stack myCollection,char mySeparator )
{
    foreach ( Object obj in myCollection )
    Console.Write( "{0}{1}", mySeparator, obj );
    Console.WriteLine();
}