大约有 40,000 项符合查询结果(耗时:0.0456秒) [XML]

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About catching ANY exception

... You can but you probably shouldn't: try: do_something() except: print "Caught it!" However, this will also catch exceptions like KeyboardInterrupt and you usually don't want that, do you? Unless you re-raise the exception right away - see the following example f...
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In Python how should I test if a variable is None, True or False

...ry: result = simulate(open("myfile")) except SimulationException as sim_exc: print "error parsing stream", sim_exc else: if result: print "result pass" else: print "result fail" # execution continues from here, regardless of exception or not And now you can have a ...
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The role of #ifdef and #ifndef

...o do something like that with the old #ifdef/#ifndef pair. #if defined(ORA_PROC) || defined(__GNUC) && __GNUC_VERSION > 300 share | improve this answer | follow ...
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Conditional import of modules in Python

...ad of relying on the user; here's pySerial doing it as an example. serial/__init__.py import sys if sys.platform == 'cli': from serial.serialcli import Serial else: import os # chose an implementation, depending on os if os.name == 'nt': # sys.platform == 'win32': from se...
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Why do I need an IoC container as opposed to straightforward DI code? [closed]

...: public class UglyCustomer : INotifyPropertyChanged { private string _firstName; public string FirstName { get { return _firstName; } set { string oldValue = _firstName; _firstName = value; if(oldValue != value) ...
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Is it possible to use “/” in a filename?

...call for renaming your file defined in fs/namei.c called renameat: SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname) When the system call gets invoked, it does a path lookup (do_path_lookup) on the name. Keep tracing th...
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How to keep a .NET console app running?

...ed as volatile, there is the definite possibility that subsequent reads to _quitFlag in the while loop would be optimized away, leading to an infinite loop. – Adam Robinson Apr 6 '10 at 16:51 ...
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Javascript - removing undefined fields from an object [duplicate]

...} const newObject = Object.keys(obj).reduce((acc, key) => { const _acc = acc; if (obj[key] !== undefined) _acc[key] = obj[key]; return _acc; }, {}) console.log(newObject) // Object {a: 1} share ...
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JavaScript curry: what are the practical applications?

... return this; //nothing to curry with - return function } var __method = this; var args = toArray(arguments); return function() { return __method.apply(this, args.concat([].slice.apply(null, arguments))); } } ...
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How do I add a margin between bootstrap columns without wrapping [duplicate]

... <div class="row info-panel"> <div class="col-md-4" id="server_1"> <div class="server-action-menu"> Server 1 </div> </div> </div> CSS .server-action-menu { background-color: transparent; background-image: linear-gradient(...