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There is no end to learning. I recently learned some knowledge about the C ++ manual and wrote two pieces of code. I hope someone will comment on it and point out the error or the location for improvement. in the process of writing, I encountered a

I wrote the test code for the fork process under Python (to illustrate this problem is not necessarily appropriate ): Def fork (a): def now (): import datetime return datetime. datetime. now (). strftime ("% S. % f ") import OS import time print now

Data mining-detailed explanation of the Apriori algorithm and Python implementation code, aprioripython Association rule mining is one of the most active research methods in data mining, the earliest reason was to discover the relationship between

This article was reproduced from: http://blog.csdn.net/yusiguyuan/article/details/394323771, first to clarify the meaning of the process and thread:Process is a program with a certain independent function on a data set on a running activity, is the

 Asp detection URL positive expressionDim ArrayUrl, thisUrl, PostFix, urlDim I, x, y, c    IsValidUrl = TrueArrayUrl = Split (UrlValue, "| ")For I = 0 to UBound (ArrayUrl)ThisUrl = Split (ArrayUrl (I ),".")If UBound (thisUrl) IsValidUrl = FalseExit

Problem: Under Android platform, tedit input Emoji text, cannot display color (All Black), even if Edit.controltype = Platform is set as platform native control, still useless (real machine test Style and Platform is the same, and IOS platforms are

In Linux, the system call that generates a new process is the fork function. This function name means "Forks" in English. Why is this name used? Because a process is running, if fork is used, another process is generated, so the process is "Forked",

In my inside has introduced the Linux the following C's process, the thread interface, here does not do too much elaboration.Multi-processMany processes here use traditional multi-process models. Whenever a connection is made to a client, a process

The configuration of Apache is configured by the httpd.conf file, so the following configuration directives are modified in the httpd.conf file.Configuration of the primary site (basic configuration)(1) Basic configuration:ServerRoot

Once, it was tortured by the system () function, because the system () function was not well understood. Simply knowing that using this function to execute a system command is not enough, it is not sufficient, its return value, the return value of

Under normal conditions, we print the information generated by the program to the console in real-time display, if we want to tell a program to run as a daemon, we need to change the output direction of the information, it is directed to the

nameless pipes (pipe)Pipelines can be used for communication between affinity processes, and well-known pipelines overcome the limitations of pipe without name, so that, in addition to having the functions of a pipeline, it allows communication

1. Process identifiersThe two basic identifier PID and PPID for the process described in the previous Process Description section will now detail the other identifiers of the process.Each process has a non-negative shaping that represents a unique

Piping (pipe) is a way of interprocess communication, with the following demo:#include #include#include#include#include#includestring.h>#defineMAXLINE 4096intMainintargcChar**argv) { intN; intfd[2]; pid_t pid; CharLine[maxline]; if(Pipe (FD) 0)

Before looking at the signal, there is not much attention to the comparison of different signals. When I see it again today, I suddenly feel very similar to some of the signals, and even very easy to confuse. Let's take a moment to summarize this

After reading "UNIX Network programming: Volume One", I feel that the author is really a Master of Unix programming. And for me personally, after reading a technical book, must still have to re-write the program (the exchange of content), review the

Today, when I look at the my_server example of Linux C programming, I hit this code and ask questions about the close call to its parent-child process closing the socket.The three close sockets in the callout, think of the communication end of the

Pipe Pipes are the oldest form of communication between IPC processes in UNIX systems, and all UNIX systems provide such communication mechanisms.The pipeline has the following two limitations:1. Historically, pipelines are half-duplex, data can

//ser.cpp#include #include #include #include #include #include #include #include #define IP "127.0.0.1"#define PORT 8888usingnamespace Std;intMain () {intSOCKSER,SOCKCLI; Sockaddr_in addrser,addrcli; Sockser = socket (Af_inet,sock_stream,0);

start a new process (systemfunction)The system () function can start a new process.int system (const char *string)The effect of this function is equivalent to executing the SH–C string.In general, using the system function is far from the ideal way