大约有 47,000 项符合查询结果(耗时:0.0439秒) [XML]

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How can I programmatically get the MAC address of an iphone

...tIPAddresses(); GetHWAddresses(); int i; NSString *deviceIP = nil; for (i=0; i<MAXADDRS; ++i) { static unsigned long localHost = 0x7F000001; // 127.0.0.1 unsigned long theAddr; theAddr = ip_addrs[i]; if (theAddr == 0) break; if (theAddr == localHost) continue; N...
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How to get the first word of a sentence in PHP?

... $myvalue = 'Test me more'; $arr = explode(' ',trim($myvalue)); echo $arr[0]; // will print Test share | improve this answer | follow | ...
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Is there a performance difference between i++ and ++i in C++?

... | edited Mar 29 '18 at 20:08 zar 8,36377 gold badges6868 silver badges125125 bronze badges answered Au...
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Moving average or running mean

... works great. mylist = [1, 2, 3, 4, 5, 6, 7] N = 3 cumsum, moving_aves = [0], [] for i, x in enumerate(mylist, 1): cumsum.append(cumsum[i-1] + x) if i>=N: moving_ave = (cumsum[i] - cumsum[i-N])/N #can do stuff with moving_ave here moving_aves.append(moving_ave) ...
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How to find the key of the largest value hash?

... 230 This will return max hash key-value pair depending on the value of hash elements: def largest_h...
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Github (SSH) via public WIFI, port 22 blocked

... | edited Sep 27 '12 at 1:07 Fábio Batista 23.2k33 gold badges5050 silver badges6565 bronze badges answ...
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Generating a random password in php

... $alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'; $pass = array(); //remember to declare $pass as an array $alphaLength = strlen($alphabet) - 1; //put the length -1 in cache for ($i = 0; $i < 8; $i++) { $n = rand(0, $alphaLength); $pass[] =...
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How to npm install to a specified directory?

... 340 You can use the --prefix option: mkdir -p ./install/here/node_modules npm install --prefix ./in...
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Why does changing the sum order returns a different result?

... +500 Maybe this question is stupid, but why does simply changing the order of the elements affects the result? It will change the poi...
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How to make a HTML Page in A4 paper size page(s)?

... Ages ago, in November 2005, AlistApart.com published an article on how they published a book using nothing but HTML and CSS. See: http://alistapart.com/article/boom Here's an excerpt of that article: CSS2 has a notion of paged media (think she...