Notes when writing *. Def in VC ++
Note the following when exporting global variables in the DLL:
The following two
Lib. Def description line, indicating the name of the def File
Library "dlltest"
The above shows that the dynamic link library is
#ifndef, (or #ifndef), #def, #endif等宏这几个宏是为了进行条件编译. In general, all lines in the source program are compiled. However, sometimes it is desirable to compile a part of the content only if certain conditions are met, that is, to specify the conditions
The switch in Java jre7 and later versions supports the implementation details of String, jre7switchThe switch in Java 7 supports String implementation details.
Author: zsxwing updated: 21:08:02 release: 13:58:19
Before Java 7, the switch can only
The switch in JAVA7 supports the implementation details of stringAuthor: zsxwing Updated: 2013-03-04 21:08:02 posted: 2012-04-26 13:58:19Before JAVA7, switch can only support byte, short, char, int, or its corresponding wrapper class and enum
As we all know, there is no switch in Python, which is generally replaced by if-else, for example, the C Language
Switch (key) {Case 'A':/* do_a */break; Case 'B':/* do_ B */break; Case 'C ': /* do_c */break ;}
In python
If key = 'A': #
In other languages, the switch statement is probably like thisSwitch (VAR){Case VALUE1:DO_SOME_STUFF1 ();Case VALUE2:DO_SOME_STUFF2 ();...Case VALUEN:DO_SOME_STUFFN ();Default:do_default_stuff ();}Python itself does not have a switch statement, the
Python uses the RabbitMQ server to implement the switch function instance tutorial, pythonrabbitmq
Let's take a quick look at the setup of the RabbitMQ Server:
sudo apt-get install rabbitmq-server
Python requires the Pika library to use
Python itself does not provide a switch syntax, and in order to solve problems like switch branch requirements, we can use dictionaries instead of implementations.Solution Ideas:
Handle the default in a switch statement using the fault
[IOS] how to switch the Display language in iOS development to internationalize
1. Add Chinese and English languages in Project Settings:
2. Create a Localizable. strings file to store multiple languages as a dictionary corresponding to
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