实现栈和队列的基本运行，求帮忙

Question

本帖最后由 caozhy 于 2012-11-08 15:40:13 编辑

Answer 1

Stack<string> stack = new Stack<string>();
            stack.Push("a");
            stack.Push("b");
            stack.Push("c");
            stack.Push("d");
            stack.Push("e");
            Console.WriteLine("count:" + stack.Count);
            while( 0!= stack.Count)
            { 
                Console.WriteLine(stack.Pop());
            }
            Console.Read();这个题目不适合c#，c#做的话只有这么简单，没有必要加上多余的判断，也没有必要手动的去释放

Answer 2

加判断，手动释放Stack<char> st = new Stack<char>();
            int i = st.Count;
            if (0 == st.Count)
            {
                Console.WriteLine("堆栈为空！");
            }
            else
            {
                Console.WriteLine("堆栈不为空！");
            }
            st.Push('a');
            st.Push('b');
            st.Push('c');
            st.Push('d');
            st.Push('e');
            i = st.Count;
            if (0 == st.Count)
            {
                Console.WriteLine("堆栈为空！");
                Console.WriteLine("堆栈的长度{0}！", i);
            }
            else
            {
                Console.WriteLine("堆栈不为空！");
                Console.WriteLine("堆栈的长度{0}！", i);
                for (int j = 0; j < i; j++)
                {
                    Console.WriteLine( st.Pop() + " ");
                }
                
            }
            if (0 == st.Count)
            {
                Console.WriteLine("堆栈为空！");
            }
            else
            {
                Console.WriteLine("堆栈不为空！");
            }
            st.Clear();
            Console.WriteLine("堆栈内存已释放！");
            Console.ReadLine();