[C#]NuGet套件推薦-ILMerge

 使用WindowsForm開發時很常會引用許多dll或其他相關套件，

編譯成執行檔時，除執行檔外還會有許多dll或.Json的文件，不美觀外也不便給他人使用

使用此套件即可解決此問題

https://github.com/dotnet/ILMerge

[C#]語法混合應用

一些C# 的基礎應用範例

 int iData = 123;

string str = $"Hello{iData}!!";

Action<string> greet = name =>

{

    string greeting = $"hello {name}!";

    Console.WriteLine(greeting);

};

greet("world");

其他執行續範例說明:

正常寫法如以下兩段:

private void setText(Object str) { using (StreamWriter sw = new StreamWriter(@"D:\test.txt",true,Encoding.UTF8)) { sw.WriteLine(str.ToString()); } } protected void Button1_Click(object sender, EventArgs e) { string str = "測試四"; ThreadPool.QueueUserWorkItem(new WaitCallback(setText),(Object) str); }

透握委派方式簡化程式碼:

protected void Button1_Click(object sender, EventArgs e) { string str = "測試三"; ThreadPool.QueueUserWorkItem(delegate { using (StreamWriter sw = new StreamWriter(@"D:\test.txt", true, Encoding.UTF8)); //路徑 , 不複寫檔案 , 編碼 { sw.WriteLine(str); } }); }

透過Lambda寫法:

protected void Button1_Click(object sender, EventArgs e) { string str = "測試五"; ThreadPool.QueueUserWorkItem(callback => { using (StreamWriter sw = new StreamWriter(@"D:\test.txt", true, Encoding.UTF8)) { sw.WriteLine(str.ToString()); } }); }

參考來源:

https://learn.microsoft.com/zh-tw/dotnet/csharp/language-reference/operators/lambda-expressions

https://dotblogs.com.tw/ken74114/2010/12/08/19988

[C#]圖形比對

public static bool ImageCompareString(Bitmap firstImage, Bitmap secondImage)

{

    MemoryStream ms = new MemoryStream();

    firstImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);

    String firstBitmap = Convert.ToBase64String(ms.ToArray());

    ms.Position = 0;

    secondImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);

    String secondBitmap = Convert.ToBase64String(ms.ToArray());

    if (firstBitmap.Equals(secondBitmap))

    {

        return true;

    }

    else

    {

        return false;

    }

}

使用範例"指定路徑圖片判斷是否一致"

PictureBox pb = new PictureBox();

PictureBox pb2 = new PictureBox();

string str = Directory.GetCurrentDirectory() + "\\1.jpg";

string str2 = Directory.GetCurrentDirectory() + "\\2.jpg";

pb.Load(str);

pb2.Load(str2);

Bitmap bmp1 = new Bitmap(pb.Image);

Bitmap bmp2 = new Bitmap(pb2.Image);

bool Result = false;

Result = ImageCompareString(bmp1, bmp2);