我买了一个I2C EEPROM.我想存储传感器和电压数据.我假设该值可能大于一个字节,并且可能存在大量数据.实现具有小文件分配表的文件系统是否值得这样?例如,这将使我更容易窥视EEPROM.
WPF有触摸和保持手势吗?我找不到那个事件,所以我试着为自己实现一个.我知道有Stylus
课,但在WPF中它并没有帮助我.如果没有我的代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Timers;
namespace WebControlTouch
{
/// <summary>
/// Due to lack of Touch-and-Hold gesture, here is implementation of it. Stupid M$.
/// </summary>
public static class Touch_and_Hold
{
#region Constructor + methods
/// <summary>
/// Static constructor which creates timer object with 1000ms interval, also sets parameters of Timer.
/// </summary>
static Touch_and_Hold()
{
gestureTimer = new Timer(1000);
gestureTimer.AutoReset = false;
gestureTimer.Elapsed += gestureTimer_Elapsed;
}
/// <summary> …
Run Code Online (Sandbox Code Playgroud) 我正在为Windows Phone 8.1应用设置后端。我正在使用ASP.net WebApi创建用于从数据库访问数据的RESTful api,该API是在Windows Azure上设置的。
这是我的路线的样子:
// Web API configuration and services
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "DefaultNamedApi",
routeTemplate: "api/{controller}/{name}",
defaults: new { name = RouteParameter.Optional }
);
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我想要实现的是不使用整数访问数据-我想使用字符串访问数据。这是我的WebApi控制器的代码:
private SmokopediaContext db = new SmokopediaContext();
// GET api/Images
public IQueryable<ImageModel> GetImageModels()
{
return db.ImageModels;
}
// GET api/Images/5
[ResponseType(typeof(ImageModel))]
public IHttpActionResult GetImageModel(int id)
{ …
Run Code Online (Sandbox Code Playgroud) 我正在创建简单的演示应用程序.它必须是全屏的,UI必须是响应的,例如.它必须根据分辨率进行缩放.有没有办法将WPF窗口拉伸到整个屏幕?
我正在使用PHP玩JSON.我正在使用json_encode()
函数来创建JSON.Hovewer我有奇怪的JSON输出:
[
{
"0": "1",
"1": "test",
"2": "test",
"ID": "1",
"title": "test",
"imageUrl": "test"
},
{
"0": "2",
"1": "welcome",
"2": "http://overkiller.pl/Smokopedia/Images/01.jpg",
"ID": "2",
"title": "welcome",
"imageUrl": "http://overkiller.pl/Smokopedia/Images/01.jpg"
}
]
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为什么我得到这种JSON如何从中删除这些数字?我的PHP代码:
<?php
header('Content-type: application/json');
$connection = mysql_connect('localhost', 'root', 'sam1');
$array = array();
if($connection)
{
mysql_select_db("Smokopedia");
$result = mysql_query("Select * from mainMenu");
if($result)
{
while ($row = mysql_fetch_array($result))
{
array_push($array, $row);
}
echo json_encode($array);
}else
{
$errorJson = array(
message => 'Result is empty or incorrect', …
Run Code Online (Sandbox Code Playgroud) 我正在尝试使用以下内容创建makefile:
$(CXX)=g++
$(SRC)=../src
$(INCL)=../include
all: cpu ram temperature swap statusshooter
$(CXX) main.cpp cpu.o ram.o temperature.o swap.o statusshooter.o -o main.o -I$(INCL) -Ofast -Wall -lyaml-cpp -lglog -lpqxx -lpq
cpu:
$(CXX) -c $(SRC)/CCpu.cpp -o cpu.o -Ofast -Wall
ram:
$(CXX) -c $(SRC)/CRam.cpp -o ram.o -Ofast -Wall
temperature:
$(CXX) -c $(SRC)/CTemperature.cpp -o temperature.o -Ofast -Wall
swap:
$(CXX) -c $(SRC)/CSwap.cpp -o swap.o -Ofast -Wall
statusshooter:
$(CXX) -c $(SRC)/CStatusShooter.cpp -o statusshooter.o -Ofast -Wall
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执行该makefile:
make CXX=g++-4.7
抛出以下错误:
makefile:2: *** empty variable name. Stop.
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怎么解决这个?