Stack.Pop()方法用于从堆栈顶部删除对象。该方法从顶部删除并返回对象。
语法:
Object Stack.Pop();
参数:无
返回值: Object –返回从顶部删除的项目。
示例
declare and initialize a stack: Stack stk = new Stack(); insertting elements: stk.Push(100); stk.Push(200); stk.Push(300); stk.Push(400); stk.Push(500); popping stack elements: stk.Pop(); stk.Pop(); stk.Pop(); Output: 200 100
using System; using System.Text; using System.Collections; namespace Test { class Program { //打印堆栈元素的功能 static void printStack(Stack s) { foreach (Object obj in s) { Console.Write(obj + " "); } Console.WriteLine(); } static void Main(string[] args) { //声明并初始化堆栈 Stack stk = new Stack(); //插入元素 stk.Push(100); stk.Push(200); stk.Push(300); stk.Push(400); stk.Push(500); //打印堆栈元素 Console.WriteLine("Stack elements before popping are..."); printStack(stk); //弹出堆栈元素 object item = 0; item = stk.Pop(); Console.WriteLine(item + " is popped"); item = stk.Pop(); Console.WriteLine(item + " is popped"); item = stk.Pop(); Console.WriteLine(item + " is popped"); //打印堆栈元素 Console.WriteLine("Stack elements after popping are..."); printStack(stk); //按ENTER退出 Console.ReadLine(); } } }
输出结果
Stack elements before popping are... 500 400 300 200 100 500 is popped 400 is popped 300 is popped Stack elements after popping are... 200 100
参考:Stack.Pop方法