<< 運算子將 x 向左位移若干個位,具體計算方法如下所述。放棄 x 中經移位後會超出結果類型範圍的那些高序位,將其餘的位向左位移,將空出來的低序位均設定為零。>> 運算子將 x 向右位移若干個位,具體計算方法如下所述。當 x 為 int 或 long 類型時,放棄 x 的低序位,將剩餘的位向右位移,如果 x 非負,則將高序空位位置設定為零,如果 x 為負,則將其設定為 1。當 x 為 uint 或 ulong 類型時,放棄 x
from http://hi.baidu.com/qianko/blog/item/7ffe0701eb0c0fc7267fb518.html最近在寫一個簡訊下發功能,用戶端使用c#和java的簡訊網關的進行網路通訊。之前使用java進行開發,一切正常,改用c#無法收到網關應答。想了半天意識到是不是網路位元組序問題,java預設就是大端位元組序,和網路位元組序是一至的,所以不轉換也不會有問題,而c#在windows平台上是小端位元組序。網路發送位元組流是按大端序發送,也就是從左至右發送,和c#的
Symbol Meaning static Inside a function, retains its value between callsAt the function level, visible only in this file. extern Applied to a function definition, has global scope(and is redundant)Applied to a variable, defined elsewhere. void As
using System;using System.Collections.Generic;using System.Text;using System.Net;using System.Net.Sockets;namespace UDPServer{ class Program { static void Main(string[] args) { int recv; byte[] data = new
A variable provides us with named storage that our programs can manipulate. Each variable in C++ has a specific type, which determines the size and layout of the variable's memory; the range of values that can be stored within that memory; and
using System;/// <summary>/// Contains approximate string matching/// </summary>static class LevenshteinDistance{ /// <summary> /// Compute the distance between two strings. /// </summary> public static int
from: http://www.haskell.org/haskellwiki/Haskell_in_5_steps#Write_your_first_parallel_Haskell_program起由: Write your first parallel Haskell programHaskell has good support for parallel and multicore programming. We can write a parallel program by