大约有 780 项符合查询结果（耗时：0.0173秒） [XML]
Any reason not to use '+' to concatenate two strings?
... python /binks/micks/junk/strings.py 16000000
16000000 times
real 0m4.360s
user 0m3.480s
sys 0m0.870s
There is apparently an optimisation for the a = a + b case. It does not exhibit O(n^2) time as one might suspect.
So at least in terms of performance, using + is fine.
...
Case insensitive searching in Oracle
...e any idea how to make search using the index?
– jcho360
Feb 28 '13 at 18:57
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show 5 more comments
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SSH Private Key Permissions using Git GUI or ssh-keygen are too open
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360
You changed the permissions on the whole directory, which I agree with Splash is a bad idea. ...
simulate background-size:cover on or
...o-viewport">
<video autoplay controls preload width="640" height="360">
<source src="http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4"type="video/mp4" />
<source src="http://www.quirksmode.org/html5/videos/big_buck_bunny.webm"type="video/webm" />
<s...
How do I add a password to an OpenSSH private key that was generated without a password?
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360
Try the command ssh-keygen -p -f keyfile
From the ssh-keygen man page
-p Requests chan...
How to rotate the background image in the container?
...es yoyo {
from { transform: rotate( 0deg); }
to { transform: rotate(360deg); }
}
Javascript:
$(buttonElement).click(function () {
$(".arrow").toggleClass("reverse")
return false
})
$(buttonElement).hover(function () {
$(".arrow").addClass("rotate")
}, function() {
$(".arrow").rem...
How to get a time zone from a location using latitude and longitude coordinates?
...uropean Standard Time",
abbr: "CEST",
dstOffset: 0,
rawOffset: 3600,
timestamp: 1455733120
}
Locate then get TimeZone and more
If you don't have the coordinates, you can locate the user position first.
Example below will first try HTML5 Geolocation API to get the coordinates. If ...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...addr.S_un.S_addr = htonl(ip);
serverAddr.sin_port = htons(m_port);
//注册感兴趣的网络事件
if(WSAAsyncSelect(sock, m_hWnd, WM_NETWORK, FD_CONNECT | FD_READ | FD_CLOSE)==SOCKET_ERROR){
MessageBox("注册网络事件失败！");
closesocket(sock);
WSACleanup();
}
ms...
Displaying the build date
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360
Jeff Atwood had a few things to say about this issue in Determining Build Date the hard way.
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Is there a perfect algorithm for chess? [closed]
...omething like 30 or so second moves, so by the third move we're looking at 360,000 alternative game states.
But chess games are (technically) finite. Huge, but finite. There's perfect information. There are defined start and end-states, There are no coin-tosses or dice rolls.
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