添加项目文件。

利乐包装OCR/GetOCRImage.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace TetraParkOCR
+{
+    class GetOCRImage
+    {
+        //获取文件夹下最新文件的名称
+        public class FileTimeInfo
+        {
+            public string FileName;
+            public DateTime FileCreateTime;
+        }
+
+        public FileTimeInfo GetLatesFileImageName(string dir,string ext)
+        {
+            List<FileTimeInfo> list = new List<FileTimeInfo>();
+            DirectoryInfo d = new DirectoryInfo(dir);
+            foreach (FileInfo file in d.GetFiles())
+            {
+                if (file.Extension.ToUpper() == ext.ToUpper())
+                {
+                    list.Add(new FileTimeInfo()
+                    {
+                        FileName = file.FullName,
+                        FileCreateTime = file.CreationTime
+                    });
+                }
+            }
+            var f = from x in list
+                    orderby x.FileCreateTime
+                    select x;
+            return f.LastOrDefault();
+
+        }
+
+    }
+}