叠加。C# 中的 Push()方法
原文:https://www.geeksforgeeks.org/stack-push-method-in-c-sharp/
该方法(属于系统。集合命名空间)用于在堆栈顶部插入一个对象。如果计数已经等于容量，则通过自动重新分配内部数组来增加堆栈的容量，并在添加新元素之前将现有元素复制到新数组中。如果计数小于堆栈的容量，则推送是一个 0(1)操作。如果需要增加容量来容纳新元素，Push 将变成 O(n)操作，其中 n 是 Count。
语法:
public virtual void Push (object obj);
示例:
// C# code to demonstrate the
// Stack.Push() Method
using System;
using System.Collections;
class GFG {
// Driver code
public static void Main()
{
// Creating a Stack
Stack myStack = new Stack();
// Inserting the elements into the Stack
myStack.Push("one");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements "+
"in the Stack are : ");
Console.WriteLine(myStack.Count);
myStack.Push("two");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements"+
" in the Stack are : ");
Console.WriteLine(myStack.Count);
myStack.Push("three");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements"+
" in the Stack are : ");
Console.WriteLine(myStack.Count);
myStack.Push("four");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements"+
" in the Stack are : ");
Console.WriteLine(myStack.Count);
myStack.Push("five");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements"+
" in the Stack are : ");
Console.WriteLine(myStack.Count);
myStack.Push("six");
// Displaying the count of elements
// contained in the Stack
Console.Write("Total number of elements"+
" in the Stack are : ");
Console.WriteLine(myStack.Count);
}
}
Output:
Total number of elements in the Stack are : 1
Total number of elements in the Stack are : 2
Total number of elements in the Stack are : 3
Total number of elements in the Stack are : 4
Total number of elements in the Stack are : 5
Total number of elements in the Stack are : 6
参考:
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