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一分钟读懂低功耗蓝牙(BLE) MTU交换数据包 - 创客硬件开发 - 清泛IT社区，...
...蓝色标注部分）
1) 存取地址
Access Address: 0xaf9a8c69
固定为4个字节，其值由连接请求数据包指定（详见“一分钟读懂低功耗蓝牙连接数据包”）
2) ...
为何谷歌不可复制？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...说，谷歌的诸多服务和产品都是基于互联网，不存在物理世界中的固定资产成本，因此其真正成本其实是人力成本，集中火力并快速止损的微妙平衡，恰恰也是谷歌保持创新性的原因所在，这里不得不提到谷歌X实验室。
如果你...
How to remove .htaccess password protection from a subdirectory
...
This doesnt work for me - I still get the password modal asking for username and pwd.. Using firefox & windows 7... Anybody any idea?
– ItsMeDom
Nov 3 '14 at 1:46
...
Convert int to ASCII and back in Python
...uvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
url = ''
while node_id >= 58:
div, mod = divmod(node_id, 58)
url = BASE58[mod] + url
node_id = int(div)
return 'http://short.com/%s' % BASE58[node_id] + url
Turning that back into a number isn't a big deal either.
...
How to minify php page html output?
... generally reduces the response size by about 70%. (If you use Apache, the module configuring gzip depends on your version: Apache 1.3 uses mod_gzip while Apache 2.x uses mod_deflate.)
Accept-Encoding: gzip, deflate
Content-Encoding: gzip
Use the following snippet to remove white-spaces from the H...
What's the opposite of 'make install', i.e. how do you uninstall a library in Linux?
...that the installation created.
So first check the list of files and their mod-time:
cd $SOURCE_DIR
sudo xargs -I{} stat -c "%z %n" "{}" < install_manifest.txt
You should get zero errors and the mod-times of the listed files should be on or after the installation time. If all is OK you can d...
Access-Control-Allow-Origin wildcard subdomains, ports and protocols
...reusable .htaccess (or httpd.conf) solution that works with Apache:
<IfModule mod_rewrite.c>
<IfModule mod_headers.c>
# Define the root domain that is allowed
SetEnvIf Origin .+ ACCESS_CONTROL_ROOT=yourdomain.com
# Check that the Origin: matches the defined root domain and ...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...时，不可避免的会引起性能上其它的一些开销。呵呵！这世界其实也算瞒公平的，有得必有失。
到此，本文开头的那段代码的结果就没有任何悬念了，O(∩_∩)O哈哈~，每天进步一点点~~~~~~~~
转自：http://www.blogbus.com/shijuanfen...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Lua模块是最佳选择。
闲言碎语不多讲，表一表Nginx配置文件长啥样：
lua_shared_dict phoenix_status 100m;
lua_package_path '/path/to/phoenix/include/?.lua;/path/to/phoenix/vendor/?.lua;;';
init_by_lua_file /path/to/phoenix/config.lua;
server {
listen 80;
...
Using global variables in a function
...:
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print(globvar) # No need for global declaration to read value of globvar
set_globvar_to_one()
print_globvar() # Prints 1
I imagine the reason...