大约有 40,000 项符合查询结果(耗时:0.0813秒) [XML]

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Enums and Constants. Which to use when?

...rom here as I'm lazy) [FlagsAttribute] enum DistributedChannel { None = 0, Transacted = 1, Queued = 2, Encrypted = 4, Persisted = 16, FaultTolerant = Transacted | Queued | Persisted } Constants should be for a single value, like PI. There isn't a range of PI values, there is just PI. ...
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Write to .txt file?

... 270 FILE *f = fopen("file.txt", "w"); if (f == NULL) { printf("Error opening file!\n"); exit...
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What is the most efficient way to create a dictionary of two pandas Dataframe columns?

...Speed comparion (using Wouter's method) In [6]: df = pd.DataFrame(randint(0,10,10000).reshape(5000,2),columns=list('AB')) In [7]: %timeit dict(zip(df.A,df.B)) 1000 loops, best of 3: 1.27 ms per loop In [8]: %timeit pd.Series(df.A.values,index=df.B).to_dict() 1000 loops, best of 3: 987 us per loop...
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Get Substring between two characters using javascript

... | edited Jun 3 '18 at 8:02 theUtherSide 2,58833 gold badges2727 silver badges3232 bronze badges answer...
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SQL Server: Maximum character length of object names

...m character length of object name (e.g. constraint, column) in SQL Server 2008? 3 Answers ...
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Replace only text inside a div using jquery

... | edited Oct 29 '14 at 20:50 cuSK 7701010 silver badges2323 bronze badges answered Aug 8 '12 at 14:56 ...
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Difference between `mod` and `rem` in Haskell

... 20 I had the same question about rem and mod in Clojure, and this was the answer. – noahlz Jul 11 '12 at...
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How to select only the first rows for each unique value of a column

... answered Jan 11 '11 at 20:50 gbngbn 382k7272 gold badges532532 silver badges629629 bronze badges ...
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How do I check out a specific version of a submodule using 'git submodule'?

...ing the change to the parent repository. $ cd submodule $ git checkout v2.0 Previous HEAD position was 5c1277e... bumped version to 2.0.5 HEAD is now at f0a0036... version 2.0 git-status on the parent repository will now report a dirty tree: # On branch dev [...] # # modified: submodule (n...
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Is there a way to rename an Xcode 4 scheme?

... | edited Mar 18 '11 at 0:59 answered Mar 18 '11 at 0:54 ...