📅  最后修改于: 2020-10-31 02:48:27             🧑  作者: Mango
C#提供了一个Array类来处理与数组相关的操作。它提供了用于创建,操作,搜索和排序数组元素的方法。此类用作.NET编程环境中所有数组的基类。
[SerializableAttribute]
[ComVisibleAttribute(true)]
public abstract class Array : ICloneable, IList, ICollection,
IEnumerable, IStructuralComparable, IStructuralEquatable
注意:在C#中,数组不是集合的一部分,而是被视为集合,因为它基于IList接口。
Property | Description |
---|---|
IsFixedSize | It is used to get a value indicating whether the Array has a fixed size or not. |
IsReadOnly | It is used to check that the Array is read-only or not. |
IsSynchronized | It is used to check that access to the Array is synchronized or not. |
Length | It is used to get the total number of elements in all the dimensions of the Array. |
LongLength | It is used to get a 64-bit integer that represents the total number of elements in all the dimensions of the Array. |
Rank | It is used to get the rank (number of dimensions) of the Array. |
SyncRoot | It is used to get an object that can be used to synchronize access to the Array. |
Method | Description |
---|---|
AsReadOnly |
It returns a read-only wrapper for the specified array. |
BinarySearch(Array,Int32,Int32,Object) | It is used to search a range of elements in a one-dimensional sorted array for a value. |
BinarySearch(Array,Object) | It is used to search an entire one-dimensional sorted array for a specific element. |
Clear(Array,Int32,Int32) | It is used to set a range of elements in an array to the default value. |
Clone() | It is used to create a shallow copy of the Array. |
Copy(Array,Array,Int32) | It is used to copy elements of an array into another array by specifying starting index. |
CopyTo(Array,Int32) | It copies all the elements of the current one-dimensional array to the specified one-dimensional array starting at the specified destination array index |
CreateInstance(Type,Int32) | It is used to create a one-dimensional Array of the specified Type and length. |
Empty |
It is used to return an empty array. |
Finalize() | It is used to free resources and perform cleanup operations. |
Find |
It is used to search for an element that matches the conditions defined by the specified predicate. |
IndexOf(Array,Object) | It is used to search for the specified object and returns the index of its first occurrence in a one-dimensional array. |
Initialize() | It is used to initialize every element of the value-type Array by calling the default constructor of the value type. |
Reverse(Array) | It is used to reverse the sequence of the elements in the entire one-dimensional Array. |
Sort(Array) | It is used to sort the elements in an entire one-dimensional Array. |
ToString() | It is used to return a string that represents the current object. |
using System;
namespace CSharpProgram
{
class Program
{
static void Main(string[] args)
{
// Creating an array
int[] arr = new int[6] { 5, 8, 9, 25, 0, 7 };
// Creating an empty array
int[] arr2 = new int[6];
// Displaying length of array
Console.WriteLine("length of first array: "+arr.Length);
// Sorting array
Array.Sort(arr);
Console.Write("First array elements: ");
// Displaying sorted array
PrintArray(arr);
// Finding index of an array element
Console.WriteLine("\nIndex position of 25 is "+Array.IndexOf(arr,25));
// Coping first array to empty array
Array.Copy(arr, arr2, arr.Length);
Console.Write("Second array elements: ");
// Displaying second array
PrintArray(arr2);
Array.Reverse(arr);
Console.Write("\nFirst Array elements in reverse order: ");
PrintArray(arr);
}
// User defined method for iterating array elements
static void PrintArray(int[] arr)
{
foreach (Object elem in arr)
{
Console.Write(elem+" ");
}
}
}
}
输出:
length of first array: 6
First array elements: 0 5 7 8 9 25
Index position of 25 is 5
Second array elements: 0 5 7 8 9 25
First Array elements in reverse order: 25 9 8 7 5 0