mirror of
https://github.com/RRQM/TouchSocket.git
synced 2025-12-19 18:06:45 +08:00
106 lines
3.4 KiB
C#
106 lines
3.4 KiB
C#
//------------------------------------------------------------------------------
|
||
// 此代码版权(除特别声明或在RRQMCore.XREF命名空间的代码)归作者本人若汝棋茗所有
|
||
// 源代码使用协议遵循本仓库的开源协议及附加协议,若本仓库没有设置,则按MIT开源协议授权
|
||
// CSDN博客:https://blog.csdn.net/qq_40374647
|
||
// 哔哩哔哩视频:https://space.bilibili.com/94253567
|
||
// Gitee源代码仓库:https://gitee.com/RRQM_Home
|
||
// Github源代码仓库:https://github.com/RRQM
|
||
// API首页:https://www.yuque.com/eo2w71/rrqm
|
||
// 交流QQ群:234762506
|
||
// 感谢您的下载和使用
|
||
//------------------------------------------------------------------------------
|
||
//------------------------------------------------------------------------------
|
||
using System;
|
||
using System.Collections.Generic;
|
||
|
||
namespace RRQMCore.Helper
|
||
{
|
||
/// <summary>
|
||
/// 字节数组扩展类
|
||
/// </summary>
|
||
public static class BytesHelper
|
||
{
|
||
/// <summary>
|
||
/// 索引包含数组
|
||
/// </summary>
|
||
/// <param name="srcByteArray"></param>
|
||
/// <param name="offset"></param>
|
||
/// <param name="length"></param>
|
||
/// <param name="subByteArray"></param>
|
||
/// <returns></returns>
|
||
public static List<int> IndexOfInclude(this byte[] srcByteArray, int offset, int length, byte[] subByteArray)
|
||
{
|
||
int subByteArrayLen = subByteArray.Length;
|
||
List<int> indexes = new List<int>();
|
||
if (length < subByteArrayLen)
|
||
{
|
||
return indexes;
|
||
}
|
||
int hitLength = 0;
|
||
for (int i = offset; i < length; i++)
|
||
{
|
||
if (srcByteArray[i] == subByteArray[hitLength])
|
||
{
|
||
hitLength++;
|
||
}
|
||
else
|
||
{
|
||
hitLength = 0;
|
||
}
|
||
|
||
if (hitLength == subByteArray.Length)
|
||
{
|
||
hitLength = 0;
|
||
indexes.Add(i);
|
||
}
|
||
}
|
||
|
||
return indexes;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 索引第一个包含数组的索引位置,例如:在{0,1,2,3,1,2,3}中索引{2,3},则返回3。
|
||
/// </summary>
|
||
/// <param name="srcByteArray"></param>
|
||
/// <param name="offset"></param>
|
||
/// <param name="length"></param>
|
||
/// <param name="subByteArray"></param>
|
||
/// <returns></returns>
|
||
public static int IndexOfFirst(this byte[] srcByteArray, int offset, int length, byte[] subByteArray)
|
||
{
|
||
if (length < subByteArray.Length)
|
||
{
|
||
return -1;
|
||
}
|
||
int hitLength = 0;
|
||
for (int i = offset; i < length + offset; i++)
|
||
{
|
||
if (srcByteArray[i] == subByteArray[hitLength])
|
||
{
|
||
hitLength++;
|
||
}
|
||
else
|
||
{
|
||
hitLength = 0;
|
||
}
|
||
|
||
if (hitLength == subByteArray.Length)
|
||
{
|
||
return i;
|
||
}
|
||
}
|
||
|
||
return -1;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 转Base64。
|
||
/// </summary>
|
||
/// <param name="data"></param>
|
||
/// <returns></returns>
|
||
public static string ToBase64(this byte[] data)
|
||
{
|
||
return Convert.ToBase64String(data);
|
||
}
|
||
}
|
||
} |