main (int ac, char * of[])和 main(int argc,char *argv[]) Of some of my understanding

Observance of the whereabouts of the 100th article,,,Although the content is somewhat illegible

Yesterday, see route on the main (int argc,char *argv[]) The article feels written brief said such a function

Of course first contact functions of this function is not the main (int argc,char *argv[]) But the main (int AC, char * of[])

They use the same。

Each c language program must have a function called main of[……]

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USB interface to Know

Universal Serial Bus

USB's full name is this,,A blink of an eye,USB 1.0 standard came from the 3.0,of course,Little blue box 3.0 also does not fully into our lives,As it is now around us phone、flat、SLR,Almost still in use USB2.0 standard,Occasionally,People around him or will not tell exactly which line corresponds to which device,What can mix,Which can not。

[warning]
The line can not be mixed is not inserted into the device,Because different shapes,Can insert the,a few[……]

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c language command-line arguments argc,argv

Start

int main(int argc, const char * argv[])

In the C language learning time,We are writing a program,Then view the results in a terminal run,Enter a number, and so on ...... do not know if you have not tried it allows you to write programs that can accept parameters like system commands it? For example,:ls -al like this。

If you wish to do so,Like above, as to declare it!

among them:

argv: Pointer Pointer

argc: Integer

For chestnuts

Assumptions program[……]

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Commonly used strings in c-number function

atof(To convert a string into a floating-point number)

Related Functions atoi,atoll,strtod,strtol,strtoul
Header Files #include <stdlib.h>
Defined Functions double atof(const char * nptr);

Function Description atof()It scans the string parameter nptr,Skip over white space characters,Until a few metWord or the sign began to do the conversion,The encounter ended when non-numeric or string(‘/0’)[……]

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What is SELinux

Profile

SELinux is "Security-Enhanced Linux"Abbreviation,Linux is a US National Security Agency, "NSA = The National Security Agency" and SCC (Secure Computing Corporation) developedExtended mandatory access control security module

Development reasons

Because a lot of trade secrets stored on the company's business platform server,personal information,It is directly related to the personal data of personal privacy[……]

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Rebuild the OS x was deleted Recovery HD

DESCRIPTION

On OS X,There is always a lot of friends because of various reasons,For example, the dual system,For example, change the SSD, etc., etc.,The system will reluctantly comes with Recovery HD comes with this system rescue mode deleted - I do not think that anyone is simply to 650M of disk space and delete it, right =。= Short,While the system can use cmd + r networking at boot time to download,But at the crucial moment,Still very very inconvenient,Not to mention the U disk to do a system disk so the ......,Today, we teach a method of routing,From the system disk OS X[……]

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Sign manually to your OS X patches marked with SSL

Update

Just this morning,Apple released version 10.9.2 update,大小 859.7M,If you do not brush out of the AppStore update,Do not worry,Go to the official website to downloadNow!

Foreword

Just two days ago,Apple Push the latest version of iOS7.0.6,The good news is not blocked escape vulnerability on。of course,The update does not change anything else,That fixes a vulnerability。What is the vulnerability has been calm this predicament usually make Apple such a large campaign do? That is SSL connection is established bug,This bug leads directly around when SSL authentication[……]

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Huawei MA5680T Common examples of debugging commands

I recently in preparation for the contest three networks,Front also wrote an article entitled "Examples of commonly used maintenance commands SoftCo9500"As the article notes,Here,Write an accompanying configuration troubleshooting of EPON。EPONIt is "Ethernet passive optical network" shorthand,HuaweiMA5680TIs aEPONofOLT,Not repeat them here Related Terms,Default readers have a certain level of knowledge,the following,According to an example I will simply tell you about a few of my favorite troubleshooting commands。

The command here is the same with Huawei series,I want to get used to configuring Huawei[……]

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