compatibility

问题 I am just trying to compile a bit bigger project using the Visual Studio 2012 Release Candidate, C++. The project was/is compiled using the VS2010 now. (I am just greedy to get the C++11 things, so I tried. :) Apart of things that I can explain by myself, the project uses the code like this: ostringstream ostr; ostr << "The " __FUNCTION__ "() failed to malloc(" << i << ")."; throw bad_alloc(ostr.str().c_str()); The compiler now complains error C2248: 'std::bad_alloc::bad_alloc' : cannot

问题 How to dis-allow my app to run on a specific API level? i know about the 3 specifiers in uses-sdk tag in the manifest. But that can't produce a logic i want to implement. For eg: i want to allow my application to be installed on Level 4 to Level 10 , dis-allow for Level 11 to Level 13 and again allow for Level 14 and Level 15 . Is that possible? 回答1: You can do that when you publish it to the Google Play. In Android Developer Console while uploading application come to APK files tab and check

问题 I'm writing scripts which I want to split into several modules. The "baseline" modules will support older browsers, which do not support new syntax such as === and promises. The "advanced" modules will be loaded if the browser passes a feature-check. My question is, how do I check if browser supports === operator and .then(function(){}) promise syntax without actually using them first, and causing a syntax error in older browsers? if (/*what goes here*/) { var script = document.createElement(

问题 I'm using FSharp.Compiler.CodeDom (from the PowerPack) to dynamically create F# classes. The problem is, that I have both VS2008 and VS2010 on my computer side-by-side (they works fine), and using F# in this configuration is buggy at best: If I don't install InstallFSharp.msi, then under VS2008 the built classes complain about not finding FSharp.Core (even if they're referenced) If I install InstallFSharp.msi, then under VS2008 the built classes will use the F# built for VS2010, and will

问题 >>> import pandas Traceback (most recent call last): File "<pyshell#8>", line 1, in <module> import pandas File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site- packages/pandas/__init__.py", line 40, in <module> import pandas.core.config_init File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site- packages/pandas/core/config_init.py", line 14, in <module> import pandas.core.config as cf File "/Library/Frameworks/Python.framework/Versions/3.6/lib

问题 >>> import pandas Traceback (most recent call last): File "<pyshell#8>", line 1, in <module> import pandas File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site- packages/pandas/__init__.py", line 40, in <module> import pandas.core.config_init File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site- packages/pandas/core/config_init.py", line 14, in <module> import pandas.core.config as cf File "/Library/Frameworks/Python.framework/Versions/3.6/lib

问题 I develop a C++ program which might use adobe flash, although it is not essential. I use CoCreateInstance to create the flash object, and if it fails, I know flash is not installed so I don't use it. However, in Vista (and I think Windows 7 as well), when flash is not installed, after leaving the application, the "Program Compatibility Assistant" pops up a message saying that "This program requires a missing Windows component" specifying the flash.ocx. Is there a way to prevent this message

问题 I develop a C++ program which might use adobe flash, although it is not essential. I use CoCreateInstance to create the flash object, and if it fails, I know flash is not installed so I don't use it. However, in Vista (and I think Windows 7 as well), when flash is not installed, after leaving the application, the "Program Compatibility Assistant" pops up a message saying that "This program requires a missing Windows component" specifying the flash.ocx. Is there a way to prevent this message

问题 I see quite a few changed interfaces in JDK7, e.g., the addition of ResultSet.getObject(String, Class<T>) . I was greatly surprised by this incompatible change, especially because I've never seen it discussed. I suppose the incompatibility doesn't matter when I use a JAR file instead of trying to compile the project myself, right? What is the proper way to support both JDK6 and JDK7? Does simply implementing the new methods and never using them suffice? 回答1: It seems <T> T getObject(int

问题 I have an url like: http://xxx.abcdef.com/fdfdf/ And I want to get xxx.abcdef.com Which module can i use for accomplish this? I want to use the same module and method at python2 and python3 I don't like the try except way for python2/3 compatibility Thanks you so much! 回答1: Use urlparse: from urlparse import urlparse o = urlparse("http://xxx.abcdef.com/fdfdf/") print o print o.netloc In Python 3, you import urlparse like so: from urllib.parse import urlparse Alternatively, just use str.split(