大约有 7,400 项符合查询结果(耗时:0.0193秒) [XML]

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How to write an async method with out parameter?

...ssible on this MSDN thread: http://social.msdn.microsoft.com/Forums/en-US/d2f48a52-e35a-4948-844d-828a1a6deb74/why-async-methods-cannot-have-ref-or-out-parameters As for why async methods don't support out-by-reference parameters? (or ref parameters?) That's a limitation of the CLR. We chose t...
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What is %2C in a URL?

...M | 6D | m | | 0E | SO | 2E | . | 4E | N | 6E | n | | 0F | SI | 2F | / | 4F | O | 6F | o | | 10 | DLE | 30 | 0 | 50 | P | 70 | p | | 11 | DC1 | 31 | 1 | 51 | Q | 71 | q | | 12 | DC2 | 32 | 2 | 52 | R | 72 | r | | 13 | DC3 | 33 | 3 | 53 | S | 73 | s | | 14 | D...
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Flattening a shallow list in Python [duplicate]

...st_count * t.timeit(number=test_count) / test_count print('%20s: %.2f usec/pass' % (method, per_pass)) result_by_method[method] = per_pass return result_by_method if __name__ == '__main__': if len(sys.argv) != 2: raise ValueError('Need a number of items to flatten') ...
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How much faster is Redis than mongoDB?

... elapsed = time.time() - start print "Completed %s: %d ops in %.2f seconds : %.1f ops/sec" % (test.__name__, num, elapsed, num / elapsed) if __name__ == '__main__': num = 1000 if len(sys.argv) == 1 else int(sys.argv[1]) tests = [mongo_set, mongo_get, redis_set, redis_get] # order...
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Git - deleted some files locally, how do I get them from a remote repository

... StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackov
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path

...entca, Jan 9, 2003, trustedCertEntry, Certificate fingerprint (MD5): 0C:41:2F:13:5B:A0:54:F5:96:66:2D:7E:CD:0E:03:F4 thawtepersonalbasicca, Feb 13, 1999, trustedCertEntry, Certificate fingerprint (MD5): E6:0B:D2:C9:CA:2D:88:DB:1A:71:0E:4B:78:EB:02:41 addtrustclass1ca, May 1, 2006, trustedCertEntry, ...
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Why does integer division in C# return an integer and not a float?

... // 2 int c = 5/2; Console.WriteLine (c); // 2 double d = 5f/2f; Console.WriteLine (d); // 2.5 share | improve this answer | follow | ...
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In C/C++ what's the simplest way to reverse the order of bits in a byte?

...x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, }; return table[x]; } share | improv...
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What is the fastest way to send 100,000 HTTP requests in Python?

...r(len(out)),end="\r") time2 = time.time() print(f'Took {time2-time1:.2f} s') print(pd.Series(out).value_counts()) share | improve this answer | follow |...
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How to get a complete list of ticker symbols from Yahoo Finance? [closed]

...n%20(select%20industry.id%20from%20yahoo.finance.sectors)&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys It downloads a complete list of stock symbols using the Yahoo YQL API, including the stock name, stock symbol, and industry ID. What it doesn't seem to have is any sort of stock symbo...