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What is the difference between __init__ and __call__?
I want to know the difference between __init__ and __call__ methods.
13 Answers
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specify project file of a solution using msbuild
...and ')' with '_' in the folder name (GYP generated projects). I guess it's all the special characters are replaced with underscore.
– Maxime Viargues
Jun 13 '16 at 1:49
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When is the @JsonProperty property used and what is it used for?
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As you know, this is all about serialize and desalinize an object. Suppose there is an object:
public class Parameter {
public String _name;
public String _value;
}
The serialization of this object is:
{
"_name": "...",
"_value": ".....
Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”
...ollowed the Maven tutorial to the letter but I still can't get Maven installed on Windows.
16 Answers
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
__attribute____attribute__instructionsGNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（Variabl GNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可...
KIO4_Gradient 拓展：布局中的颜色渐变 - App Inventor 2 中文网 - 清泛IT...
http://kio4.com/appinventor/287_extension_gradiente_color.htm
- 让我们看一下在布局中制作颜色渐变的扩展。- 我们放置一个布局，然后在该扩展的块中插入该布局的名称，放置一个包含所需颜色的列表，以及一个从 1 到 8 的数字，用于表示...
Docker how to change repository name or rename image?
...host OS and Docker version? I suspect that something about your Docker installation is modifying the tag instruction.
– Andy
Feb 18 '16 at 2:41
27
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What is the relative performance difference of if/else versus switch statement in Java?
...ic interface Action {
void execute(String input);
}
And get hold of all implementations in some Map. You can do this either statically or dynamically:
Map<String, Action> actions = new HashMap<String, Action>();
Finally replace the if/else or switch by something like this (leav...
Best way to give a variable a default value (simulate Perl ||, ||= )
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In PHP 7 we finally have a way to do this elegantly. It is called the Null coalescing operator. You can use it like this:
$name = $_GET['name'] ?? 'john doe';
This is equivalent to
$name = isset($_GET['name']) ? $_GET['name']:'john doe'...
6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
...要动用C++的编译器g++才能编程通过。
hello1.c
#define _________ }
#define ________ putchar
#define _______ main
#define _(a) ________(a);
#define ______ _______(){
#define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C)
#define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F)
#define ____ _...