byte length

Some friends are always consulted about binary file read-write and conversion. Here is my own understanding to say.a). Generic problem binaries are fundamentally different from the way we typically store text files. This difference is difficult to

The custom common Files and directories operation function library, in the win and Linux platform to do cross-platform processing. (Cross-platform processing can be used as a reference comparison.) In the win directory the symbol can be \ or/, but

Description name [length, unit: byte] packet structure header [10]: Baotou body [21 +?] : Packet header [10] protocol header [1]: 1 byte length, for example, 0x07 Protocol version [1]: 1 byte length, for example, 0x01body length [4]: 4-byte number,

Before the official content starts, let's first understand a basic concept, encoding character set. Encoding character set: the encoding character set is a character set that assigns a unique number to each character. The core of the Unicode

The value of string is immutable, and each operation on string generates a new string object, not only inefficient, but also consumes a lot of memory space. The StringBuffer class, like the string class, is also used to represent strings, but the

InnoDB storage engine As with most databases, records are stored as rows. This means that the page holds data for a row of rows in the table. Before the InnoDB 1.0.x version, the InnoDB storage engineThe compact and redundant two formats are

(1) Integer typeintegers include bigint, int, smallint, and tinyint, which can be seen from the meaning of identifiers, and their range of representations is gradually shrinking.L bigint: Large integer, number range is-263 (-9223372036854775808) ~263

From: http://www.xuanyusong.com/archives/1919Export all game object information from unity scene, one is XML, one is JSON. In this article, we export the name of the game object, rotate, zoom, translate and prefab in the game scene in XML and JSON.

(Transferred from http://blog.csdn.net/xuxinshao/article/details/2244277)One, what is alignment, and why to align:1. The memory space in modern computers is divided by byte, theoretically it seems that access to any type of variable can start from

Previous Code First Service side: s_unix.c #include #include #include #include #define UNIX_DOMAIN "/tmp/unix.domain" int main (void) {socklen_t clt_addr_len; int listen_fd; int com_fd; int ret; int i; static Char recv_buf[1

One, what is aligned, and why to align: 1. The memory space in modern computers is divided by byte, theoretically, it seems that access to any type of variable can start at any address, but the reality is that access to a particular variable is

Using Java for file copy I believe many people will use, but is it the best efficiency?Recently I looked at NiO and decided to try the performance improvement of Java NIO. The first method: The old way public static long Forjava (File f1,file F2)

Original link: http://blog.csdn.net/shenbin1430/article/details/4292463Why are you aligning?The memory space in modern computers is divided by Byte, in theory it seems that access to any type of variable can start from any address, but the reality

Package zip;Import Java.io.ByteArrayOutputStream;Import java.io.IOException;Import Java.io.InputStream;Import Java.io.OutputStream;Import Java.util.zip.Deflater;Import Java.util.zip.DeflaterOutputStream;Import Java.util.zip.Inflater;Import Java.util.

The concept of Process Communication was initially derived from a standalone system. Since each process runs within its own address range, in order to ensure that two processes communicate with each other without mutual interference and coordination,

Basic knowledge1) What is "last-modified "?When the browser requests a URL for the first time, the server returns 200, and the content is the resource you requested, at the same time, there is a last-modified attribute to mark the last modification

I. There are three types of File Reading locations in Android: First: read data from asset: // Method: get the file from asset and read the data Public String getfromasset (string filename) {string result = ""; try {inputstream in =

A message that, when serialized, first even if the message all filed serialization needs to occupy the length of bytes, the calculation of this length is very simple, because protobuf in each type of filed occupies a known number of bytes (except

http://blog.csdn.net/hbuxiaofei/article/details/9491953When you look at the headline and still want to read it, it means that you're starting to focus on the data in memory storage issues.All right, here's a question to ask:struct stu{char sex;int

This is a creation in Article, where the information may have evolved or changed. Brief introduction Because the project needs to use the 3DES algorithm plus decryption information in the ECB mode, Golang only provides CBC mode by default and only