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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Reflection; using System.Data; using System.Data.Common; using System.Web.Script.Serialization; using System.Globalization; using System.Collections; using System.IO; using System.Drawing; using System.IO.Compression; using System.Runtime.Serialization.Formatters.Binary; namespace Pub.Class { public static class ArrayExtensions { public static bool IsNullEmpty(this Array array) { return array == null || array.Length == 0; } public static bool IsNullEmpty(this ArrayList list) { return (list == null) || (list.Count == 0); } public static int GetInArrayID(this string[] stringArray, string strSearch, bool caseInsensetive) { for (int i = 0; i < stringArray.Length; i++) { if (caseInsensetive) { if(strSearch.ToLower() == stringArray[i].ToLower()) return i; } else { if(strSearch == stringArray[i]) return i; } } return -1; } public static int GetInArrayID(this string[] stringArray, string strSearch) { return GetInArrayID(stringArray, strSearch, true); } public static string ToDelimitedString<T>(this T[] array, string format, string delimiter) { if (array == null || array.Length == 0) return string.Empty; if (format.IsNullEmpty()) format = "{0}"; StringBuilder builder = new StringBuilder(); for (int index = 0; index < array.Length; ++index) { if (index != 0) builder.Append(delimiter); builder.AppendFormat(format, array[index]); } return builder.ToString(); } public static T[] RemoveDuplicates<T>(this T[] array) { ArrayList al = new ArrayList(); for (int i = 0; i < array.Length; i++) { if (!al.Contains(array[i])) al.Add(array[i]); } return (T[])al.ToArray(typeof(T)); } public static T[] Slice<T>(this T[] array, int start, int end) { if (start >= array.Length) { start = 0; end = 0; } if (end < 0) end = array.Length - start - end; if (end <= start) end = start; if (end >= array.Length) end = array.Length-1; int len = end - start + 1; T[] res = new T[len]; for (int i = 0; i < len; i++) res[i] = array[i + start]; return res; } public static string Join<T>(this T[] array, string splitStr) { StringBuilder sb = new StringBuilder(); foreach(T info in array) { sb.AppendFormat("{0}{1}", info.ToString(), splitStr); } return sb.ToString().Left(sb.Length - splitStr.Length); } public static void Action<T>(this T[] inArray, Action<T, Int32> inAction) { for (int i0 = 0; i0 < inArray.GetLength(0); i0++) { inAction(inArray[i0], i0); } } public static void Action<T>(this T[,] inArray, Action<T, Int32, Int32> inAction) { for (int i0 = 0; i0 < inArray.GetLength(0); i0++) { for (int i1 = 0; i1 < inArray.GetLength(1); i1++) inAction(inArray[i0, i1], i0, i1); } } public static void Action<T>(this T[,,] inArray, Action<T, Int32, Int32, Int32> inAction) { for (int i0 = 0; i0 < inArray.GetLength(0); i0++) { for (int i1 = 0; i1 < inArray.GetLength(1); i1++) { for (int i2 = 0; i2 < inArray.GetLength(2); i2++) inAction(inArray[i0, i1, i2], i0, i1, i2); } } } public static void Action<T>(this T[,] inArray, Int32 inDimension, Int32 inIndex, Action<T, Int32> inAction) { if (inDimension == 0) { for (int i = 0; i < inArray.GetLength(1); i++) inAction(inArray[inIndex, i], i); } else if (inDimension == 1) { for (int i = 0; i < inArray.GetLength(0); i++) inAction(inArray[i, inIndex], i); } else { throw new ArgumentException("inDimension must be zero or one"); } } public static void Action<T>(this T[,,] inArray, Int32 inDimension, Int32 inIndex, Action<T, Int32, Int32> inAction) { if (inDimension == 0) { for (int i0 = 0; i0 < inArray.GetLength(1); i0++) { for (int i1 = 0; i1 < inArray.GetLength(2); i1++) inAction(inArray[inIndex, i0, i1], i0, i1); } } else if (inDimension == 1) { for (int i0 = 0; i0 < inArray.GetLength(0); i0++){ for (int i1 = 0; i1 < inArray.GetLength(2); i1++) inAction(inArray[i0, inIndex, i1], i0, i1); } } else if (inDimension == 2) { for (int i0 = 0; i0 < inArray.GetLength(0); i0++){ for (int i1 = 0; i1 < inArray.GetLength(1); i1++) inAction(inArray[i0, i1, inIndex], i0, i1); } } else { throw new ArgumentException("inDimension must be zero or one or two"); } } public static Image ToImage(this byte[] bytes) { if (bytes != null) { MemoryStream ms = new MemoryStream(bytes, 0, bytes.Length); ms.Write(bytes, 0, bytes.Length); return Image.FromStream(ms, true); } return null; } public static bool ToFile(this byte[] bytes, string fileName, FileMode fileMode) { bool returnValue = true; FileAccess fileAccess = FileAccess.ReadWrite; if (fileMode == FileMode.Append) fileAccess = FileAccess.Write; FileStream fs = new FileStream(fileName, fileMode, fileAccess); BinaryWriter bw = new BinaryWriter(fs); try { bw.Write(bytes); } catch (Exception) { returnValue = false; } finally { fs.Close(); bw.Close(); } return returnValue; } public static byte[] Compress(this byte[] data) { using (MemoryStream output = new MemoryStream()) { using (DeflateStream def = new DeflateStream(output, CompressionMode.Compress)) { def.Write(data, 0, data.Length); } return output.ToArray(); } } public static byte[] Decompress(this byte[] data) { using (MemoryStream input = new MemoryStream()) { input.Write(data, 0, data.Length); input.Position = 0; using (DeflateStream def = new DeflateStream(input, CompressionMode.Decompress)) { using (MemoryStream output = new MemoryStream()) { byte[] buff = new byte[64]; int read = -1; read = def.Read(buff, 0, buff.Length); while (read > 0) { output.Write(buff, 0, read); read = def.Read(buff, 0, buff.Length); } def.Close(); return output.ToArray(); } } } } public static T Decompress<T>(this byte[] compressedData) where T : class { return compressedData.Decompress().Deserialize<T>(); } public static T Deserialize<T>(this byte[] data) where T : class { var formatter = new BinaryFormatter(); using (MemoryStream ms = new MemoryStream(data)) return formatter.Deserialize(ms) as T; } public static bool IsInArray(this string[] stringArray, string strSearch, bool caseInsensetive) { return stringArray.GetInArrayID(strSearch, caseInsensetive) >= 0; } public static bool IsInArray(this string[] stringarray, string str) { return stringarray.IsInArray(str, false); } public static bool IsInIPArray(this string[] iparray, string ip) { string[] userip = ip.Split(@"."); for (int ipIndex = 0; ipIndex < iparray.Length; ipIndex++) { string[] tmpip = iparray[ipIndex].Split(@"."); int r = 0; for (int i = 0; i < tmpip.Length; i++) { if (tmpip[i] == "*") return true; if (userip.Length > i) { if (tmpip[i] == userip[i]) r ++; else break; } else break; } if (r == 4) return true; } return false; } //Action<string, int> MsgW3 = (s, i) => { Msg.Write(s + i); Msg.Write("<br />"); }; //"test1,test2,test3".Split(',').Action<string>(MsgW3); } } |
转自：http://www.cnblogs.com/livexy/archive/2010/07/06/1772502.html