exception

问题 I am working on a c# project where i communicate with an USB device. I open the connection with: [DllImport("Kernel32.dll", SetLastError = true)] static extern Microsoft.Win32.SafeHandles.SafeFileHandle CreateFile(string filename, [MarshalAs(UnmanagedType.U4)]FileAccess fileaccess, [MarshalAs(UnmanagedType.U4)]FileShare fileshare, int securityattributes, [MarshalAs(UnmanagedType.U4)]FileMode creationdisposition, int flags, IntPtr template); private Microsoft.Win32.SafeHandles.SafeFileHandle

问题 I am having a little bit of a problem here. I am trying to figure out how to catch the IllegalArgumentException. For my program, if the user enters a negative integer, the program should catch the IllegalArgumentException and ask the user if he/she wants to try again. But when the exception is thrown, it doesn't give that option. It just terminates. I tried to use the try and catch method but it doesn't work for me. How do I catch this particular exception to continue to run instead of

问题 I am having a little bit of a problem here. I am trying to figure out how to catch the IllegalArgumentException. For my program, if the user enters a negative integer, the program should catch the IllegalArgumentException and ask the user if he/she wants to try again. But when the exception is thrown, it doesn't give that option. It just terminates. I tried to use the try and catch method but it doesn't work for me. How do I catch this particular exception to continue to run instead of

问题 I am having a little bit of a problem here. I am trying to figure out how to catch the IllegalArgumentException. For my program, if the user enters a negative integer, the program should catch the IllegalArgumentException and ask the user if he/she wants to try again. But when the exception is thrown, it doesn't give that option. It just terminates. I tried to use the try and catch method but it doesn't work for me. How do I catch this particular exception to continue to run instead of

问题 Listing all files in a drive other than my system drive throws an UnauthorizedAccessException . How can I solve this problem? Is there a way to grant my application the access it needs? My code: Directory.GetFiles("S:\\", ...) 回答1: Here's a class that will work: public static class FileDirectorySearcher { public static IEnumerable<string> Search(string searchPath, string searchPattern) { IEnumerable<string> files = GetFileSystemEntries(searchPath, searchPattern); foreach (string file in files

问题 I'm trying to solve a problem with the domparser since hour. I wrote a simple application to load a xml-file, modify them and write the changes back. It works until I switched converted the project to a maven-project. I'm not sure if thats the problem. I can't understand the exception Here my Code-Part for the DOM-parser: import java.io.File; import java.io.IOException; import javafx.beans.property.BooleanProperty; import javafx.beans.property.SimpleBooleanProperty; import javafx.beans

问题 How to print python exception? Example: try: action() except: print "Unexpected error:", sys.exc_info()[0] Prints: Unexpected error: <type 'exceptions.TypeError'> It does not have much information for me. 回答1: Use traceback module: try: action() except: import traceback traceback.print_exc() 回答2: You can print the exception which occurred too. try: action() except exception as ex: print("Exception: " + str(ex)) 来源： https://stackoverflow.com/questions/45131565/how-to-print-an-exception

问题 How to print python exception? Example: try: action() except: print "Unexpected error:", sys.exc_info()[0] Prints: Unexpected error: <type 'exceptions.TypeError'> It does not have much information for me. 回答1: Use traceback module: try: action() except: import traceback traceback.print_exc() 回答2: You can print the exception which occurred too. try: action() except exception as ex: print("Exception: " + str(ex)) 来源： https://stackoverflow.com/questions/45131565/how-to-print-an-exception

问题 How to print python exception? Example: try: action() except: print "Unexpected error:", sys.exc_info()[0] Prints: Unexpected error: <type 'exceptions.TypeError'> It does not have much information for me. 回答1: Use traceback module: try: action() except: import traceback traceback.print_exc() 回答2: You can print the exception which occurred too. try: action() except exception as ex: print("Exception: " + str(ex)) 来源： https://stackoverflow.com/questions/45131565/how-to-print-an-exception

问题 How to print python exception? Example: try: action() except: print "Unexpected error:", sys.exc_info()[0] Prints: Unexpected error: <type 'exceptions.TypeError'> It does not have much information for me. 回答1: Use traceback module: try: action() except: import traceback traceback.print_exc() 回答2: You can print the exception which occurred too. try: action() except exception as ex: print("Exception: " + str(ex)) 来源： https://stackoverflow.com/questions/45131565/how-to-print-an-exception