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micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...
at java.util.UUID.fromString(UUID.java:226)
原因：ble版本太旧了，用新版本就可以解决。请使用最新编译出来的拓展（版本20240822）：https://www.fun123.cn/reference/iot/bluetoothle.html。
来源：https://bbs.tsingfun.com/thread-1953-1-1.html
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...ted to: 127.0.0.1
exported 9 records
命令执行完后使用ll命令查看，发现目录下生成了一个students.dat的文件
-rw-r--r-- 1 root root 869 Aug 21 00:05 students.dat
查看该文件信息，具体信息如下：
[root@localhost mongodb]# cat students.dat
{ "_id" : { "$...
Using HTML5/JavaScript to generate and save a file
...ed FileSaver.js that adds this function to most modern browsers (including Internet Explorer 10+). Internet Explorer 10 supports a navigator.msSaveBlob(blob, filename) method (MSDN), which is used in FileSaver.js for Internet Explorer support.
I wrote a blog posting with more details about this pro...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
...lut 64-bit dll goes into /System32. Someone should write that down. On the internet.
– Jeroen Baert
Apr 3 '12 at 14:50
8
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Can I install Python windows packages into virtualenvs?
..._built_with_distutils.exe
Surprised? It looks like binary installers for Windows made with distutils combine .exe with .zip into one .exe file. Change extension to .zip to see it's a valid zip file. I discovered this after reading answers to my question Where can I download binary eggs with psycop...
How to provide user name and password when connecting to a network share
...
0);
if (result != 0)
{
throw new Win32Exception(result);
}
}
~NetworkConnection()
{
Dispose(false);
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual ...
Reading 64bit Registry from a 32bit application
...
There is still native support for registry access under 64 bit Windows using .NET Framework 4.x. The following code is tested with Windows 7, 64 bit and also with Windows 10, 64 bit.
Instead of using "Wow6432Node", which emulates a node by mapping one registry tree into another mak...
SQL中使用update inner join和delete inner join；Oracle delete join替代...
...here and table1.khid=table2.khid and FWDWID=8);
Oracle的delete与join如何使用
delete from A where sid in
(select a.sid from A a inner join B b on a.num2 = b.num1
where b.num2 not between '10'and '10000') 这段sql如何优化，不使用in？
1. 用exists 来替代 in
delete fr...
采花大盗速成秘籍之YQL - 人工智能(AI) - 清泛IT论坛，有思想、有深度
...商品，如下图所示：当当网每日特价
现在可以出手了，打开YQL Console，运行如下代码即可获得相关数据：select * from html
where url='http://www.dangdang.com/'
and xpath='//ul[@id="homepage_promotion_count_ul"]/li/p[@class="name"]/a'通过指...
PHP操作MongoDB时的整数问题及对策 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...考，如：MongoDB Aggregation III: Map-Reduce Basics。
说明：软件版本为MongoDB 1.6.5，PECL Mongo 1.1.4。不同版本结论可能不同。
PHP MongoDB 整数问题