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ClickTools 拓展：为布局、标签等没有点击事件的组件添加点击事件 - App In...
...n be done using procedures also still I thought to add it to extension.
Now it is possible to do long click of component.
[size=15.008px] IMPORTANT
If you register button or another clickable components then the built in .Click event will not work
See here[color=var(--primary-high-or-second...
MIT官方已升级至2.71版本，几乎就是仅增加一个全新主题 - App Inventor 2 ...
...can be independently expanded/collapsed
The main body of MIT App Inventor now loads via the CloudFlare content delivery network. This should result in faster startup of MIT App Inventor.
Note: Sites with restrictive firewalls will need to unblock access to https://.appinv.net (where the “” mea...
Async Procedures 拓展：异步任务拓展，异步处理耗时任务 - App Inventor 2...
...B
the a is the 1st item in the list
the b is the 2nd item in the list
NOW THE FUN PART!Call a Procedure Async Using this block
[color=var(--tertiary)][color=var(--secondary)]Capture[color=var(--secondary-high)]582×215 12.9 KB
These 2 Blocks Do the same Function But with Arguments in it
[c...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...nsciously enable the receiving option to receive texts.
The big challenge now was that people might want to develop apps for their own use that relied on the Google-censored functionality. This is where the “u” companion comes in. It is the companion as it would have been if Google hadn’t cha...
VC/Linux C++ 递归访问目录下所有文件 - c++1y / stl - 清泛IT社区，为创新赋能！
...bsp; HANDLE hFind=::FindFirstFile(szFind,&FindFileData);
if(INVALID_HANDLE_VALUE == hFind) return;
while(TRUE)
{
if(FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
&nb...
AppInventor2中的二进制数据以什么样的形式传递？字节列表、字节数组是什么...
...p; resetErrorInfo(funcName);
if (!IsConnected()) {
raiseErrorOccured(funcName, new MqttException(Helper.REASON_CODE_INVALID_STATE));
return;
...
mfc spin control 用法 - C++ UI - 清泛IT社区，为创新赋能！
...ESSAGE_MAP(CxxDlg, CDialogEx)
ON_NOTIFY(UDN_DELTAPOS, IDC_SPIN_CHG, &CxxDlg::OnDeltaposSpinChg)
END_MESSAGE_MAP()
.h：afx_msg void OnDeltaposSpinChg(NMHDR *pNMHDR, LRESULT *pResult);
.cpp：
void CxxDlg::OnDeltaposSpinChg(NMHDR *pNMHDR, LRESULT *pResu...
常用Sql - 爬虫/数据库 - 清泛IT社区，为创新赋能！
本帖最后由 zqp2013 于 2015-3-17 22:06 编辑
mysql：drop table if exists tablename;
不能写成
drop table tablename if exists tablename;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID` &nbs...
APP INVENTOR硬件交互学习教程03——巧借arduino nano 配置HC-05 - 创客硬...
...id loop() {
// read from port 1, send to port 0:
if (EEBlue.available()) {
int inByte = EEBlue.read();
Serial.write(inByte);
}
// read from port 0, send to port 1:
if (Serial.available()) {
 ...
c++ boost库 序列化与反序列化 - c++1y / stl - 清泛IT社区，为创新赋能！
...T_SERIALIZATION_SHARED_PTR(TStopProfitOrder);
2、save、load函数：
#ifndef STRUCT_SAVE_LOAD_H_
#define STRUCT_SAVE_LOAD_H_
//
#include <string>
#include <fstream>
//
#include "boost/archive/text_iarchive.hpp"
#include "boost/archive/text_oarchive.hpp"
#include ...