大约有 5,229 项符合查询结果(耗时:0.0185秒) [XML]

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Converting strings to floats in a DataFrame

... [14]: df.convert_objects(convert_numeric=True).dtypes Out[14]: A float64 B float64 dtype: object share | improve this answer | follow | ...
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How do I use JDK 7 on Mac OSX?

...05 Ben S 64.1k2929 gold badges162162 silver badges208208 bronze badges answered May 1 '12 at 11:54 MukundMukun...
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How to configure Visual Studio to use Beyond Compare

...pare 4\\BComp.exe\" \"$REMOTE\" \"$LOCAL\" \"$BASE\" \"$MERGED\" If 64bit installer is used, verify the name of the executable. Mine was BCompare.exe [diff] tool = bc4 [difftool "bc4"] cmd = \"C:\\Program Files\\Beyond Compare 4\\BCompare.exe\" \"$LOCAL\" \"$REMOTE\" [merge] t...
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What's the difference between `1L` and `1`?

...ypeof(y) # double, twice the memory size object.size(y) # 840 bytes (on win64) z <- x+1L typeof(z) # still integer object.size(z) # 440 bytes (on win64) ...but also note that working excessively with integers can be dangerous: 1e9L * 2L # Works fine; fast lean and mean! 1e9L * 4L # Ooops, o...
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Error Code: 2013. Lost connection to MySQL server during query

...ield to 0 is equivalent to the default parameter (600 seconds). (Windows 7 64-bit Ultimate, MySQL Workbench 5.2.47 CE) – Franck Dernoncourt Jun 1 '13 at 21:30 ...
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Cannot find Dumpbin.exe

... With VS 2019, installing MSVC v142 - VS 2019 C++ x64/x86 build tools (v14.25) was enough for me to get dumpbin.exe. – 0xced Apr 16 at 6:57 add a comme...
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How does RegexOptions.Compiled work?

...| x86 | 4 ms | 26 ms | 31 ms Interpreted | x64 | 5 ms | 29 ms | 35 ms Compiled | x86 | 913 ms | 3775 ms | 4487 ms Compiled | x64 | 3300 ms | 21985 ms | 22793 ms 1,000,000 matches - re...
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.NET console application as Windows service

... with that framework." what is wrong here? – user6102644 May 20 '16 at 7:23 3 Make sure you are t...
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Are GUID collisions possible?

... Robert Harvey 164k4141 gold badges308308 silver badges467467 bronze badges answered Oct 8 '08 at 21:00 Tom RitterTom...
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Using HTML and Local Images Within UIWebView

... try use base64 image string. NSData* data = UIImageJPEGRepresentation(image, 1.0f); NSString *strEncoded = [data base64Encoding]; <img src='data:image/png;base64,%@ '/>,strEncoded ...