C # obtain the path

// Obtain the complete path of the current process, including the file name (process name ).

String STR = This. GetType (). Assembly. location;

// Result: X: \ XXX \ xxx.exe (.exefile)

// Obtain the complete path of the new process component and associate it with the active process, including the file name (process name ).

String str1 = system. Diagnostics. process. getcurrentprocess (). mainmodule. filename;

// Result: X: \ XXX \ xxx.exe (.exefile)

// Obtain and set the full path of the current directory (that is, the directory from which the process starts.

String str2 = system. environment. currentdirectory;

// Result: X: \ XXX (directory of the .exe file)

// Obtain the base Directory of the current application domain of the current thread, which is used by the Assembly conflict resolution program to detect the assembly.

String str3 = system. appdomain. currentdomain. basedirectory;

// Result: X: \ XXX \ (directory where the .exe file is located + "\")

// Obtain and set the name of the directory containing the application.

String str4 = system. appdomain. currentdomain. setupinformation. applicationbase;

// Result: X: \ XXX \ (directory where the .exe file is located + "\")

// Obtain the path of the executable file that started the application, excluding the name of the executable file.

// String str5 = system. Windows. Forms. application. startuppath;

// Result: X: \ XXX (directory of the .exe file)

// Obtain the path of the executable file that started the application, including the name of the executable file.

// String str6 = system. Windows. Forms. application. executablepath;

// Result: X: \ XXX \ xxx.exe (.exefile)

// Obtain the current working directory of the application (unreliable ).

String str7 = system. Io. Directory. getcurrentdirectory ();

// Result: X: \ XXX (directory of the .exe file)

String dbname = "AAA ";

String databasefilename = system. environment. currentdirectory + "\" + dbname;