debugging

问题 never done web programming before. Is there a way to set breakpoints, see variable values in eclipse? The app i want to debug makes a Query string whcih i would like to easily extract. 回答1: Click External Tools Config, Select program and click the new button top left. Set location to your maven binary working directory to local workspace and arguments to jetty:run In the environment tab set the maven opts. Notice socket address = 4000 and suspend=y The go to debug configurations and add a new

问题 When debugging Python script using ipdb my_script.py , I want to use IPython magic functions like %paste , %cd in ipdb debug session shell. Is is possible and how? 回答1: According to the ipdb Github repo magic IPython functions are not available. Fortunately, the IPython debugger provides a couple of clues of how to get this functionality without launching a separate IPython shell. Here is what I did to run %cpaste : ipdb> from IPython import get_ipython ipdb> shell = get_ipython() ipdb> shell

问题 When debugging Python script using ipdb my_script.py , I want to use IPython magic functions like %paste , %cd in ipdb debug session shell. Is is possible and how? 回答1: According to the ipdb Github repo magic IPython functions are not available. Fortunately, the IPython debugger provides a couple of clues of how to get this functionality without launching a separate IPython shell. Here is what I did to run %cpaste : ipdb> from IPython import get_ipython ipdb> shell = get_ipython() ipdb> shell

问题 I am trying to execute two commands at once in gdb: finish; next I tried using the ';' to separate the commands but gdb did not let me do both at once. Is it possible to do multiple commands in gdb similar to bash commands separated by ';' delimiter? 回答1: I don't believe so (but I may be wrong). You can do something like this: (gdb) define fn > finish > next > end And then just type: (gdb) fn You can put this in your ~/.gdbinit file as well so it is always available. 回答2: If you are running

问题 Everyone runs into syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as: PHP Parse error: syntax error, unexpected '{' in index.php on line 20 The unexpected symbol isn't always the real culprit. But the line number gives a rough idea of where to start looking. Always look at the code context . The syntax mistake often hides in the mentioned or in previous code lines .

问题 Everyone runs into syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as: PHP Parse error: syntax error, unexpected '{' in index.php on line 20 The unexpected symbol isn't always the real culprit. But the line number gives a rough idea of where to start looking. Always look at the code context . The syntax mistake often hides in the mentioned or in previous code lines .

问题 I am receiving this error when try to debug java in VSCode: Error Unable to open 'thing.java': File not found (\thing.java). The debugger seems to be running (my code is paused, I can see local variables and step through, but the source code is not being shown). Here is my launch.json: { "name": "Java", "type": "java", "request": "launch", "stopOnEntry": true, "preLaunchTask": "build", "jdkPath": "${env:JAVA_HOME}/bin", "cwd": "${workspaceRoot}", "startupClass": "my.package.classname",

问题 I am receiving this error when try to debug java in VSCode: Error Unable to open 'thing.java': File not found (\thing.java). The debugger seems to be running (my code is paused, I can see local variables and step through, but the source code is not being shown). Here is my launch.json: { "name": "Java", "type": "java", "request": "launch", "stopOnEntry": true, "preLaunchTask": "build", "jdkPath": "${env:JAVA_HOME}/bin", "cwd": "${workspaceRoot}", "startupClass": "my.package.classname",

问题 I have this problem and are a lot of days that i'm tring to solve it. I write a tweet using twitterOAuth // OAuth To Twitter require_once 'files-notifiche-twitter/twitteroauth.php'; // Do NOT Share (sono i token) define("CONSUMER_KEY", "xxx"); define("CONSUMER_SECRET", "xxx"); define("OAUTH_TOKEN", "xxx"); define("OAUTH_SECRET", "xxx"); // Post To Twitter $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, OAUTH_TOKEN, OAUTH_SECRET); $content = $connection->get('account/verify

问题 I am developing a site which heavily uses jquery (UI) for providing a good user experience. For some (stupid) reason parts of this site are shown within an iframe and there also is a button for refreshing the iframe to get the latest data from the server. The problem is that each time when refreshing the iframe the memory usage increases leading to serious memory problems after some time (Tested in IE8 & 9). But this occurs only if the jquery library is loaded. This behaviour can be seen best