c check if directory exists

$filename = '/path/to/foo.txt '; if (file_exists ($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"; } ?> Copy CodeIf the file is present, the

The following is an example code that checks whether a file exists: Copy CodeThe code is as follows: $filename = '/path/to/foo.txt '; if (file_exists ($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"

A simple way to determine whether a file or directory exists 1.c++ in C + +: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open (filename,ios::in);if (!_file){cout}Else{cout}return 0;}2. Ways to use

1.c++ is an easy way to do this: Copy Code code as follows: #include #include using namespace Std; #define FILENAME "Stat.dat" int main () { FStream _file; _file.open (filename,ios::in); if (!_file) { cout}

http://blog.csdn.net/roger_77/article/details/1538447/A simple way to determine whether a file or directory exists 1.c++ in C + +: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open

From: 1538447/1.c++ a very simple way: #include #include using namespace Std;#define FILENAME "Stat.dat"int main (){FStream _file;_file.open (filename,ios::in);if (!_file){cout}Else{cout}return 0;}2. Ways to use the C-language library:Name of

Using a shell to determine whether a device node exists, such as inserting a 4G Modem Sierra module into a Linux system, generates a series of TTY devices, typically with a command to send and receive at. For example, a device node is a/DEV/TTYUSB2

In most cases, you can use test commands to test the conditions. For example, you can compare strings, determine whether a file exists, and whether the file is readable. The following article describes how to use BashShell to check whether a file

The following is an example code that checks whether a file exists: Copy the code code as follows: $filename = '/path/to/foo.txt '; if (file_exists ($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"; }

The following is a simple instance code that checks whether a file exists: Copy Code code as follows: $filename = '/path/to/foo.txt '; if (file_exists ($filename)) { echo "The file $filename exists"; } else { echo "The file