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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
... 发布日志 服务条款 教育 中文教程 中文社区 反馈 我要反馈 搜索
使用App Inventor 2 控制...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...t开发iOS版本的拓展。
环境配置
安装好 Java开发环境 以及 Ant编译环境，这里以Windows为例，供参考：
安装完JDK后配置环境变量 计算机（右键）→属性→高级系统设置→高级→环境变量
新建JA...
How to import other Python files?
...odule name as a string. (Again: module name without the '.py' extension.)
pmName = input('Enter module name:')
pm = __import__(pmName)
print(dir(pm))
Type help(__import__) for more details.
share
|
...
How do I upload a file with metadata using a REST web service?
... meets second Wednesday of each month.",
"fixture":"Wednesday 7pm",
"capacity":"",
"previousScore":""
},
{
"point":new GLatLng(40.211600,-74.695702),
"homeTeam":"Hamilton Library",
"awayTeam":"LUGip HW SIG",
...
Parse string to DateTime in C#
... "MM/dd/yyyy hh:mm", "M/dd/yyyy hh:mm"};
var dtStr="5/1/2009 6:32 PM";
var dt=dtStr.ToDate(dateFmt);
If you have only a few template patterns, you can also write:
var dateStr = "2011-03-21 13:26";
var dt = dateStr.ToDate("yyyy-MM-dd HH:mm", "M/d/yyyy h:mm:ss tt");
Advanced examples ...
How do I get currency exchange rates via an API such as Google Finance? [closed]
...
Many forex trading markets are closed from 4pm EST on Friday to 5pm EST Sunday. If you really need more accurate weekend rates, then yes, I'd check a different stream.
– Ryan
Dec 7 '15 at 6:41
...
Serializing a list to JSON
...vert.SerializeObject(aList);
you may need to install the package first.
PM> Install-Package Newtonsoft.Json
For more details see and upvote the answer that is the source of this information.
For reference only, this was the original answer, many years ago;
// you need to reference System.W...
How to turn on front flash light programmatically in Android?
... false if not.
See:http://developer.android.com/reference/android/content/pm/PackageManager.html for more information.
For turning on/off flashlight:
I googled out and got this about android.permission.FLASHLIGHT. Android manifests' permission looks promising:
<!-- Allows access to the flash...
当ORACLE 11G 遇到 JUNIPER 防火墙 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...
\\HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\HOMEDIR （HOMEDIR是你机器上安装的oracle数据库的instance名称）中添加一个字符串键值，名称为USE_SHARED_SOCKET，值为TRUE（注意大小写），然后重启oracle instance或直接重启windows就OK了。
照做 不行
原...
List files by last edited date
...root root 2552 08/19/2009 02:00:34 /usr/share/man/man3/Purple.3pm.gz
-rw-r--r-- 1 root root 9546 08/19/2009 02:02:00 /usr/share/man/man1/pidgin.1.gz
-rw-r--r-- 1 root root 2201 08/19/2009 02:02:46 /usr/share/man/man3/Pidgin.3pm.gz
-rw-r--r-- 1 root root ...