Detailed introduction to directory methods

Summary of 12 basic knowledge commonly used in Python programming: regular expression replacement, directory traversal method, list sorting by column, deduplication, dictionary sorting, dictionary, list, and string conversion, time object operation, command line parameters Parsing (getopt), print formatted output, hexadecimal conversion, Python calling system commands or scripts, Python reading and writing files. 1. Regular expression replacement Goal: Replace overview.gif in the string line with other strings>>> line = ' >>> mo=re.compile(r'(?

1. Summary of 12 basic knowledge commonly used in Python programming

##Introduction: 12 types of basic knowledge commonly used in Python programming Summary of basic knowledge: regular expression replacement, directory traversal method, list sorting by column, deduplication, dictionary sorting, dictionary, list, and string conversion, time object operation, command line parameter parsing (getopt), print formatted output, Base conversion, Python calls system commands or scripts, Python reads and writes files

2. Do I really have nothing? The php loop checks whether the directory exists and creates the loop to create the directory.

Introduction: Do I Really Have Nothing Lyrics: Do I Really Have Nothing Lyrics PHP loop detects whether the directory exists and creates it Loop creation directory: Loop creation directory method This will generate image The .gif directory copy code is as follows: $filepath = "test/upload/2010/image.gif"; mk_dir($filepath); // Loop to create directory function mk_dir($dir, $mode = 0755) { if (is_dir( $dir) || @mkdir($dir,$mode)) return true; if

3. Init.php file PHP summary of methods to get the parent directory of the current file

Introduction: init.php file: init.php file PHP method summary of getting the parent directory of the current file: Method 1: First get the length of the folder where the current file is located, and then use substr to intercept the length: copy the code as follows: $dirName = str_replace("\", "/", dirname(__FILE__)); $dirNameLength = strlen($dirName); $currentDirNameLength = $dirNameLength - strrpos($dirName ,"/");

4. php loop to detect whether the directory exists and create it (loop to create the directory)_PHP tutorial

Introduction: PHP loops to detect whether the directory exists and creates it (loop to create the directory). This method of looping to create the directory will generate the image.gif directory. The copy code is as follows: $filepath = "test/upload/2010/image.gif"; mk_dir($filepath); // Loop to create directory function mk_di

5. php batch creation file directory method_PHP tutorial

Introduction: PHP batch creation file directory method. PHP tutorial batch creation file directory method class newFold{ var $upload_dir=date(Y/m/d); if(!is_dir($this-upload_dir)){ $this-mkdir_r($this-upload_dir,0777); } function mkdir_r($dirNam

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php traverse directory_PHP tutorial##Introduction: php traverse directory. 1. [Code]php directory traversal method 1 01 ?php 02 03 function myscandir($pathname){ 04 05 foreach( glob($pathname) as $filename ){ 06 07 if(is_dir($filename)){ 08 myscandir($filename ./

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Summary of php directory traversal method, php directory traversal summary_PHP tutorial

Introduction: php Summary of directory traversal methods, PHP directory traversal summary. PHP directory traversal summary. This example summarizes the PHP directory traversal method. The details are as follows: 1. Method 1 php function myscandir($pa

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Summary of php directory traversal method_PHP tutorial

Introduction: Summary of PHP directory traversal methods. Summary of PHP directory traversal method. This article mainly introduces the PHP directory traversal method. The example summarizes two commonly used implementation techniques, which has certain reference value. Friends in need can refer to it

9. How to go back to yesterday’s deleted directory

Introduction: How to go back to yesterday’s deleted directory

10. php method of creating multi-level directories

Introduction: We all know that using php's mkdir to create a folder with a multi-level directory like "a/b/c" will prompt The creation fails because the directory does not exist, but in projects we often encounter situations where multi-level directories need to be created. So what should we do? Anyway, mkdir doesn't work. Is there any other way? Of course there is. Let’s take a look at several solutions to using PHP to create multi-level directories. (1) In fact, you can create multi-level directories using mkdir, but you must use this function to create multi-level directories under PHP5. Because PHP5 is very difficult to create

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