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  • C# 文件 文件夹

            //判断文件夹(路径)是否存在
            if (Directory.Exists(Path))
            {
                                        
            }
    
            //获取文件大小
            FileInfo file = new FileInfo(labOfPath);
            size += file.Length;
    
            /// <summary>  
            /// 计算文件大小函数(保留两位小数),Size为字节大小  
            /// </summary>  
            /// <param name="Size">初始文件大小</param>  
            /// <returns></returns>  
            private static string CountSize(long Size)
            {
                string m_strSize = "";
                long FactSize = 0;
                FactSize = Size;
                if (FactSize < 1024.00)
                    m_strSize = FactSize.ToString("F2") + " Byte";
                else if (FactSize >= 1024.00 && FactSize < 1048576)
                    m_strSize = (FactSize / 1024.00).ToString("F2") + " K";
                else if (FactSize >= 1048576 && FactSize < 1073741824)
                    m_strSize = (FactSize / 1024.00 / 1024.00).ToString("F2") + " M";
                else if (FactSize >= 1073741824)
                    m_strSize = (FactSize / 1024.00 / 1024.00 / 1024.00).ToString("F2") + " G";
                return m_strSize;
            }                    
            /// <summary>
            /// 递归获取文件夹的大小(字节)(包含里面的子文件及子文件夹)
            /// </summary>
            /// <param name="size"></param>
            /// <param name="Path"></param>
            /// <returns></returns>
            private static long GetDirectorySize(string Path)
            {
                long size = 0;
                DirectoryInfo di = new DirectoryInfo(Path);
                foreach (FileInfo fi in di.GetFiles())
                {
                    size += fi.Length;
                }
                DirectoryInfo[] dis = di.GetDirectories();
                if (dis.Length > 0)
                {
                    for (int i = 0; i < dis.Length; i++)
                    {
                        size += GetDirectorySize(dis[i].FullName);
                    }
                }
                return size;
            }    
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  • 原文地址:https://www.cnblogs.com/zhyue93/p/File.html
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