大约有 42,000 项符合查询结果(耗时:0.0418秒) [XML]

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Why does changing 0.1f to 0 slow down performance by 10x?

...) { double start = omp_get_wtime(); const float x[16]={1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4,2.5,2.6}; const float z[16]={1.123,1.234,1.345,156.467,1.578,1.689,1.790,1.812,1.923,2.034,2.145,2.256,2.367,2.478,2.589,2.690}; float y[16]; for(int i=0;i<16;i++) ...
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Reverse / invert a dictionary mapping

...Python 2.7.x inv_map = {v: k for k, v in my_map.iteritems()} For Python 3+: inv_map = {v: k for k, v in my_map.items()} share | improve this answer | follow ...
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Define variable to use with IN operator (T-SQL)

...List VALUES (1) INSERT INTO @MyList VALUES (2) INSERT INTO @MyList VALUES (3) INSERT INTO @MyList VALUES (4) SELECT * FROM MyTable WHERE MyColumn IN (SELECT Value FROM @MyList) share | improve thi...
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iTunes Connect: How to choose a good SKU?

... 306 You are able to choose one that you like, but it has to be unique. Every time I have to enter...
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]

...olid date parsing. If you were to get an ISO 8601 string like: 2010-05-08T23:41:54.000Z you'd have a fun time parsing that with strptime, especially if you didn't know up front whether or not the timezone was included. pyiso8601 has a couple of issues (check their tracker) that I ran into during my ...
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How to revert to origin's master branch's version of file

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How do I decode HTML entities in Swift?

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Loading custom configuration files

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Subscripts in plots in R

... 138 expression is your friend: plot(1,1, main=expression('title'^2)) #superscript plot(1,1, main=...
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Rails: Custom text for rails form_for label

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