大约有 24,000 项符合查询结果(耗时:0.0090秒) [XML]
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
...server.js:
const express = require('express')
const app = express()
const https = require('https')
const fs = require('fs')
const port = 3000
app.get('/', (req, res) => {
res.send("IT'S WORKING!")
})
const httpsOptions = {
key: fs.readFileSync('./security/cert.key'),
cert: fs.readF...
App Inventor 2 网络微数据库你用对了吗? - App Inventor 2 中文网 - 清泛...
...
下面推荐2个中文网站,体验差不多,网站如下:
https://tinywebdb.cn/ 经测试,单个键值的容量大小约为 64KB 字节,超过则会保存失败。
https://tinywebdb.appinventor.space/ 经测试,单个键值的容量大小约为 9000 字节(9KB),超...
DendritasMqtt 拓展:用于 websocket 的Mqtt扩展 - App Inventor 2 拓展 - ...
...应该是原始版本,支持原生的TCP协议,用最新版本即可:https://www.fun123.cn/reference/iot/MQTT.html
请自行通过demo研究。
参考来源:https://community.appinventor.mi ... -with-service/14365
https://groups.google.com/d/msg/ ... cn5PzY/Kg8BJEPGAQAJ
QRCodeGenerator 拓展使用后,apk编译失败 - 用户反馈 - 清泛IT社区,为创新赋能!
...是不打包zxing库,解决apk编译问题。
拓展开发中。。
https://www.fun123.cn/reference/ ... RCodeGenerator.html
原版来自:
https://community.appinventor.mi ... -extension/47908/34
自研版已上线,编译apk正常:https://www.fun123.cn/reference/extensions/QRCodeGener...
基于PECL OAuth打造微博应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...致代码如下:
<?php
session_start();
$request_token_url = 'https://open.t.qq.com/cgi-bin/request_token';
$authorize_url = 'https://open.t.qq.com/cgi-bin/authorize';
$access_token_url = 'https://open.t.qq.com/cgi-bin/access_token';
$oauth = new OAuth(
'YOUR_CONSUMER_KEY',...
Select where count of one field is greater than one
...
I give an example up on Group By between two table in Sql:
Select cn.name,ct.name,count(ct.id) totalcity
from city ct left join country cn on ct.countryid = cn.id
Group By cn.name,ct.name
Having totalcity &gt; 2
s...
Get output parameter value in ADO.NET
...ad]
static void Main(string[] args)
{
using( SqlConnection cn = new SqlConnection("server=(local);Database=Northwind;user id=sa;password=;"))
{
SqlCommand cmd = new SqlCommand("CustOrderOne", cn);
cmd.CommandType=CommandType.StoredProcedure ;
SqlParam...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...00001-B5A3-F393-E0A9-E50E24DCCA9E。标准16位UUID技术文档请参考:https://www.bluetooth.com/specifications/assigned-numbers/。
点此自助购买 以上演示的aia源码。BLE专业文档更多关于BLE更深入的技术原理介绍,请参考BLE技术揭秘。
最后做个推广即...
SqlDataAdapter vs SqlDataReader
... minimum amount of code you should have when using a SqlDataReader:
Using cn As New SqlConnection("..."), _
cmd As New SqlCommand("...", cn)
cn.Open()
Using rdr As SqlDataReader = cmd.ExecuteReader()
While rdr.Read()
''# ...
End While
End Using
End Usi...
MFC AFX_WM_CREATETOOLBAR消息相关 - C/C++ - 清泛网 - 专注C/C++及内核技术
...指针。NULL 表示工具栏创建取消。
详细请参见:https://technet.microsoft.com/zh-cn/library/bb982948
定义:
BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWndEx)
ON_WM_CREATE()
ON_COMMAND(ID_WINDOW_MANAGER, &CMainFrame::OnWindowManager)
ON_COMMAND(ID_VIEW_CUSTOMIZE, &...
