ArraySegment

第一个构造函数

Initializes a new instance of the ArraySegment<T> structure that delimits all the elements in the specified array.

public ArraySegment(
T[] array
)

Parameters
array
Type: T[]
The array to wrap.

Remarks

This constructor creates an ArraySegment<T> that delimits all the elements of array.

That is, the Offset property of the ArraySegment<T> is 0 and its Count property is the length of array.

To create an ArraySegment<T> that delimits划界，定界限 only part of an array, use the ArraySegment<T>(T[], Int32, Int32) constructor.

The original array must be one-dimensional and must have zero-based indexing.

Multiple ArraySegment<T> instances can refer to the same original array and can overlap重叠.

 

第二个构造函数

Initializes a new instance of the ArraySegment<T> structure that delimits the specified range of the elements in the specified array.

初始化一个ArraySegment<T>,从array的offset下标开始，往后count个元素

public ArraySegment(
T[] array,
int offset,
int count
)

Parameters

array

Type:  T[]

The array containing the range of elements to delimit.

offset

Type:  System.Int32

The zero-based index of the first element in the range.

count

Type:  System.Int32

The number of elements in the range.

Remarks

The original array must be one-dimensional and must have zero-based indexing.

Multiple ArraySegment<T> instances can refer to the same original array and can overlap.