exit

问题 My .NET 5 console application registers a HandlerRoutine by using SetConsoleCtrlHandler, so it can do some cleanup before exiting. This allows me to react to CTRL+C / CTRL+BREAK , ALT+F4 and the console being closed using the X button. Sadly, the HandlerRoutine doesn't get called when Task Manager tries to terminate the application after clicking End Task in the Process tab, even though the documentation for HandlerRoutine states the following regarding CTRL_CLOSE_EVENT : A signal that the

问题 I am using exit in C++ void function if file cannot be opened. Is it good practice to do so? void ReadData() { ofstream myfile ("example.txt"); if (! myfile.is_open()) { cout << "Unable to open file"; exit(0); } else { myfile << "This is a line.\n"; myfile << "This is another line.\n"; myfile.close(); } } 回答1: That will end the program, which is a bit harsh if the caller might be able to handle the error and continue. Exiting with zero (indicating success) is a very bad idea. The usual way to

问题 I am using nodejs to communicate with a casperjs script i have made. first of all i will tell you what my Casperjs script does. i have set it up with command line input. i the run this command casperjs script.js "Inputdata1" "inputdata2" this script then executes and visits one of my servers submits the input data 1 & 2. then waits for a server response and rights a line to one of 10 text files depending on the result the script gets from my server this then exit. this casperjs script works

问题 I am using nodejs to communicate with a casperjs script i have made. first of all i will tell you what my Casperjs script does. i have set it up with command line input. i the run this command casperjs script.js "Inputdata1" "inputdata2" this script then executes and visits one of my servers submits the input data 1 & 2. then waits for a server response and rights a line to one of 10 text files depending on the result the script gets from my server this then exit. this casperjs script works

问题 I am using nodejs to communicate with a casperjs script i have made. first of all i will tell you what my Casperjs script does. i have set it up with command line input. i the run this command casperjs script.js "Inputdata1" "inputdata2" this script then executes and visits one of my servers submits the input data 1 & 2. then waits for a server response and rights a line to one of 10 text files depending on the result the script gets from my server this then exit. this casperjs script works

问题 This question already has answers here : How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess ends with code !=0? (31 answers) Closed 3 years ago . In Bash, I want to call a command multiple times in parallel, while capturing all the processes exit codes. I know how to start and wait for them, but wait will only give me the exit code of the last process exiting. I also need the exit code of the shorter lived processes. Unfortunately I don't have

问题 This question already has answers here : How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess ends with code !=0? (31 answers) Closed 3 years ago . In Bash, I want to call a command multiple times in parallel, while capturing all the processes exit codes. I know how to start and wait for them, but wait will only give me the exit code of the last process exiting. I also need the exit code of the shorter lived processes. Unfortunately I don't have

问题 I have 4 batch files, suppose a.bat, b.bat, c.bat and d.bat. Now these batch files are called in such a manner that a.bat calls b.bat, b.bat calls c.call and so on. If I get any error in any batch file, I want to exit from the entire program by saying an error occurred, and mention which batch file had a problem. My question is , how can I do this? Here I used exit /b but it only gets out from the current batch file and moves back into batch file from whence it was called: a.bat @echo. off

问题 I have a PHP script that needs to be executed for hours and hours and sometimes for some reasons (for example network problem while executing of a script which needs to be connected to internet ,etc...) the execution process stops for a while and does wrong thing(and it always causes a E_NOTICE while the process is going to wrong way) My question is that is there ((any)) way to notice when there is a warning in your script?(And stop the whole script as well) There is a Pseudocode for my

问题 I have a PHP script that needs to be executed for hours and hours and sometimes for some reasons (for example network problem while executing of a script which needs to be connected to internet ,etc...) the execution process stops for a while and does wrong thing(and it always causes a E_NOTICE while the process is going to wrong way) My question is that is there ((any)) way to notice when there is a warning in your script?(And stop the whole script as well) There is a Pseudocode for my