如果有人正在寻找如何合并两个图像字节数组:

        private void LoadImage()
        {
            string src = string.empty;
            byte[] mergedImageData = new byte[0];

            mergedImageData = MergeTwoImageByteArrays(watermarkByteArray, backgroundImageByteArray);
            src = "data:image/png;base64," + Convert.ToBase64String(mergedImageData);
            MyImage.ImageUrl = src;
        }

        private byte[] MergeTwoImageByteArrays(byte[] imageBytes, byte[] imageBaseBytes)
        {
            byte[] mergedImageData = new byte[0];
            using (var msBase = new MemoryStream(imageBaseBytes))
            {
                System.Drawing.Image imgBase = System.Drawing.Image.FromStream(msBase);
                Graphics gBase = Graphics.FromImage(imgBase);
                using (var msInfo = new MemoryStream(imageBytes))
                {
                    System.Drawing.Image imgInfo = System.Drawing.Image.FromStream(msInfo);
                    Graphics gInfo = Graphics.FromImage(imgInfo);
                    gBase.DrawImage(imgInfo, new Point(0, 0));
                    //imgBase.Save(Server.MapPath("_____testImg.png"), ImageFormat.Png);
                    MemoryStream mergedImageStream = new MemoryStream();
                    imgBase.Save(mergedImageStream, ImageFormat.Png);
                    mergedImageData = mergedImageStream.ToArray();
                    mergedImageStream.Close();
                }
            }
            return mergedImageData;
        }

这是另一种方法:

public static void ArrayPush<T>(ref T[] table, object value)
{
    Array.Resize(ref table, table.Length + 1); // Resizing the array for the cloned length (+-) (+1)
    table.SetValue(value, table.Length - 1); // Setting the value for the new element
}

public static void MergeArrays<T>(ref T[] tableOne, T[] tableTwo) {
    foreach(var element in tableTwo) {
        ArrayPush(ref tableOne, element);
    }
}

下面是代码片段/示例

我认为你可以使用数组。收到。它有一个源索引和一个目标索引，因此您应该能够将一个数组附加到另一个数组。如果您需要更复杂的操作，而不仅仅是将一个附加到另一个，那么这个工具可能不适合您。

如果你不想删除重复的，那么试试这个

使用LINQ:

var arr1 = new[] { 1, 2, 3, 4, 5 };
var arr2 = new[] { 6, 7, 8, 9, 0 };
var arr = arr1.Concat(arr2).ToArray();

连接多个数组的简单代码:

string[] arr1 = ...
string[] arr2 = ...
string[] arr3 = ...    
List<string> arr = new List<string>(arr1.Length + arr2.Length + arr3.Length);
arr.AddRange(arr1);
arr.AddRange(arr2);
arr.AddRange(arr3);
string[] result = arr.ToArray();

如果你在一个数组中有源数组，你可以使用SelectMany:

var arrays = new[]{new[]{1, 2, 3}, new[]{4, 5, 6}};
var combined = arrays.SelectMany(a => a).ToArray();
foreach (var v in combined) Console.WriteLine(v);   

给了

1
2
3
4
5
6

这可能不是最快的方法，但根据用例可能适合。