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法律在 C# 中检查 Stack 是否包含一个元素
若要检查 Stack 是否有元素，可使用 C# Contains() 方法。以下为相应代码 −
示例
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
Stack<int> stack = new Stack<int>();
stack.Push(100);
stack.Push(150);
stack.Push(175);
stack.Push(200);
stack.Push(225);
stack.Push(250);
stack.Push(300);
stack.Push(400);
stack.Push(450);
stack.Push(500);
Console.WriteLine("Elements in the Stack:");
foreach(var val in stack){
Console.WriteLine(val);
}
Console.WriteLine("Count of elements in the Stack = "+stack.Count);
Console.WriteLine("Does Stack has the element 400?= "+stack.Contains(400));
}
}输出
将生成以下输出 −
Elements in the Stack: 500 450 400 300 250 225 200 175 150 100 Count of elements in the Stack = 10 Does Stack has the element40400?= True
示例
我们来看看另一个示例 −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
Stack<string> stack = new Stack<string>();
stack.Push("Steve");
stack.Push("Gary");
stack.Push("Stephen");
stack.Push("Nathan");
stack.Push("Katie");
stack.Push("Andy");
stack.Push("David");
stack.Push("Amy");
Console.WriteLine("Elements in the Stack:");
foreach(var val in stack){
Console.WriteLine(val);
}
Console.WriteLine("Count of elements in the Stack = "+stack.Count);
Console.WriteLine("Does Stack has the element 400?= "+stack.Contains("Michael"));
}
}输出
将生成以下输出 −
Elements in the Stack: Amy David Andy Katie Nathan Stephen Gary Steve Count of elements in the Stack = 8 Does Stack has the element 400?= False
更新日期：2019-12-04
206 次浏览
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