Opendir functionHeader files: #include #include Function: DIR *opendir (const char *name);Meaning: Opendir () is used to open the directory specified by the parameter name, and returns the directory stream of the dir* pattern, similar to open (),
Each encounter such a problem will always toss a long time, to search online, or check the information, get a lot of times, but it is not remember, this time to write the program has met, simply put it all clear, and then by the way here record, and
Problem
Why c ++? Before you frown, try to answer this simple question. Efficiency, right? Everyone knows this. However, when a person starts to discuss programming languages or related topics, he must be very clear and targeted. Why? Let me ask you
today, in a variety of new development languages, in Java and C #, why do we learn and use C + + today? Is it useful to learn C + + in the future? Is it all worthwhile to spend so much time and energy learning C + +? Are you learning C + + Money now?
Determines whether the directory is empty, true is null, false is not empty function Is_empty_dir ($fp) {$H = @ opendir ($fp), $i =0, while ($_file=readdir ($H)) {$i + +;} Closedir ($H); if ($i >2) {return false;} Else{return true;}} 1. Determine if
Problem
Why c ++? Before you frown and close the webpage, try to answer such a simple question.
The answer is efficiency, right? Everyone knows the answer. However, we should discuss a programming language or related things from a more professional
Directory operation function 1) closedir close directoryCorrelation function: OpendirTable header files: #include #include define function: int closedir (DIR *dir);Function Description: Closedir () closes the directory stream that the parameter dir
Determines whether the directory is empty, true is null, false is not empty function Is_empty_dir ($fp) {$H = @ opendir ($fp), $i =0, while ($_file=readdir ($H)) {$i + +;} Closedir ($H); if ($i >2) {return false;} Else{return true;}} 1. Determine if
Are the simplest to remember.This is my git address: HTTPS://GITHUB.COM/YANJINYUN/CLANGUAGETCPUDPThe simplest server for TCP:intMainintargcConst Char*argv[]) { intLISTENFD, ACCEPTFD; structsockaddr_in sin, cin; Socklen_t Clen; Charbuf[1024x768]
Original address: https://www.cnblogs.com/shiyanlou/p/6098661.htmlKnow: https://www.zhihu.com/question/20564904C language is most of us in the programming of the language, but also familiar with it, but many beginners in the process of learning will
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