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CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...。DNS方式用户位置判断准确率大于85%，HTTP方式准确率为99%以上；一般情况下，各Cache服务器群的用户访问流入数据量与Cache服务器到原始网站取内容的数据量之比在2：1到3：1之间，即分担50%到70%的到原始网站重复访问数据量（主...
What do
...use it with a Foo containing something other than a String:
scala> Foo(123).getStringLength
<console>:9: error: could not find implicit value for parameter evidence: =:=[Int,String]
You can read that error as "could not find evidence that Int == String"... that's as it should be! getStri...
Assign a variable inside a Block to a variable outside a Block
...
Luke
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answered Jan 10 '14 at 7:15
Umesh SawantUmesh Sawa...
Shared-memory objects in multiprocessing
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123
If you use an operating system that uses copy-on-write fork() semantics (like any common unix)...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
中文网测试案例
.aia 测试源码下载：
TestSqlite.aia
打开数据库
一般可以在屏幕初始化时打开db。如果数据库已打开，则不...
printf format specifiers for uint32_t and size_t
...ng)k is always correct. size_t is trickier, which is why %zu was added in C99. If you can't use that, then treat it just like k (long is the biggest type in C89, size_t is very unlikely to be larger).
– u0b34a0f6ae
Nov 8 '11 at 21:32
...
Get the last non-empty cell in a column in Google Sheets
...an use INDEX and MATCH functions like this:
=DAYS360(A2; INDEX(A:A; MATCH(99^99;A:A; 1)))
I think this is a little bit faster and easier.
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
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499
NOTE: All algorithms below are in C, but should be portable to your language of choice (just do...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...
优化库导入导出方法
.aix 拓展下载：
cn.fun123.SQLite.aix - v1.2
中文网测试案例
.aia 测试源码下载：
TestSqlite.aia
打开数据库
一般可以在屏幕初始化时打开db。如果数据库已打开...
String formatting: % vs. .format vs. string literal
...Most people do not know that this is actually already defined in the Ansi C99 Std! Check out a recent copy of man sprintf and learn about the $ notation inside % placeholders
– cfi
Feb 20 '13 at 12:42
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