大约有 48,000 项符合查询结果（耗时：0.0395秒） [XML]
source of historical stock data [closed]
...ade Time
t6 Trade Links
t7 Ticker Trend
t8 1 yr Target Price
v Volume
v1 Holdings Value
v7 Holdings Value (Real-time)
w 52-week Range
w1 Day's Value Change
w4 Day's Value Change (Real-time)
x Stock Exchange
y Dividend Yield
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data.table vs dplyr: can one do something well the other can't or does poorly?
...l take effort (being thread safe).
Progress is being made currently (in v1.9.7 devel) towards parallelising known time consuming parts for incremental performance gains using OpenMP.
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im...
How line ending conversions work with git core.autocrlf between different operating systems
...on.
This is how core.autocrlf appears to work currently (or at least since v1.7.2 from what I am aware):
core.autocrlf = true
Text files checked-out from the repository that have only LF characters are normalized to CRLF in your working tree; files that contain CRLF in the repository will not be ...
How do BitTorrent magnet links work?
...ohash is typically hex-encoded, but some old clients used base 32 instead. v1 (urn:btih:) uses the SHA-1 digest directly, while v2 (urn:bimh:) adds a multihash prefix to identify the hash algorithm and digest length.
2 There are two primary DHT networks: the simpler "mainline" DHT, and a more compli...
How do you track record relations in NoSQL?
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Riak recently released v1.0, which adds support for secondary indexes when using the LevelDB backend. Very valuable feature.
– Jon L.
Oct 14 '11 at 4:31
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Generic method multiple (OR) type constraint
...terface. Ex. allow any struct or string so that you can simply call Equals(v1, v2) for value based comparison.
– Vakhtang
Aug 14 '18 at 12:06
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Merging: Hg/Git vs. SVN
...itch that could be used to solve the --reintegrate problem, and apparently v1.8 chooses when to do a reintegrate automatically, and it doesn't cause the branch to be dead afterwards
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.prop() vs .attr()
...oncepts. Moving to prop and attr was meant to de-conflate them. Briefly in v1.6.0 jQuery went too far in that regard, but functionality was quickly added back to attr to handle the common situations where people use attr when technically they should use prop.
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In what cases could `git pull` be harmful?
... -p @{u} won't eliminate the merge caused by the merge-pull. Update: Git v1.8.5 added git pull --rebase=preserve and git config pull.rebase preserve. These cause git pull to do git rebase --preserve-merges after fetching the upstream commits. (Thanks to funkaster for the heads-up!)
Cleaning Up ...
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...
...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，则不会发生...