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APP INVENTOR硬件交互学习教程07——多个参数上报 - 创客硬件开发 - 清泛IT...
...no代码，温度和电位计使用随机数生成
// 引脚定义
const int ledPin1 = 5;// the number of the LED pin
const int ledPin2 = 6;
const int ledPin3 = 3;
const int bluePin = 6;// the number of the LED pin
const int greenPin = 5;
cons...
Generate random numbers using C++11 random library
...and-Considered-Harmful
#include <random>
#include <iostream>
int main() {
std::random_device rd;
std::mt19937 mt(rd());
std::uniform_real_distribution<double> dist(1.0, 10.0);
for (int i=0; i<16; ++i)
std::cout << dist(mt) << "\n";
}
We u...
onMeasure custom view explanation
...ndroid how big you want your custom view to be dependent the layout constraints provided by the parent; it is also your custom view's opportunity to learn what those layout constraints are (in case you want to behave differently in a match_parent situation than a wrap_content situation). These cons...
Intelligent way of removing items from a List while enumerating in C#
...moveAll(x => elems.Contains(x));
This assume that your loop is solely intended for removal purposes, of course. If you do need to additional processing, then the best method is usually to use a for or while loop, since then you're not using an enumerator:
for (int i = myList.Count - 1; i >=...
What are 'closures' in .NET?
...sure is a block of code which can be executed at a later time, but which maintains the environment in which it was first created - i.e. it can still use the local variables etc of the method which created it, even after that method has finished executing.
The general feature of closures is implemen...
How do I generate a random int number?
How do I generate a random integer in C#?
32 Answers
32
...
How to declare std::unique_ptr and what is the use of it?
...
The constructor of unique_ptr<T> accepts a raw pointer to an object of type T (so, it accepts a T*).
In the first example:
unique_ptr<int> uptr (new int(3));
The pointer is the result of a new expression, while in the second example:
unique_ptr<double> uptr...
C++ templates Turing-complete?
...
Example
#include <iostream>
template <int N> struct Factorial
{
enum { val = Factorial<N-1>::val * N };
};
template<>
struct Factorial<0>
{
enum { val = 1 };
};
int main()
{
// Note this value is generated at compile time.
/...
How to initialize private static members in C++?
... file if not shared).
File: foo.h
class foo
{
private:
static int i;
};
But the initialization should be in source file.
File: foo.cpp
int foo::i = 0;
If the initialization is in the header file then each file that includes the header file will have a definition of the static membe...
Dynamically replace the contents of a C# method?
...
Disclosure: Harmony is a library that was written and is maintained by me, the author of this post.
Harmony 2 is an open source library (MIT license) designed to replace, decorate or modify existing C# methods of any kind during runtime. It main focus is games and plugins written i...