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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
... 为了强化这个原则，ØMQ严格地分离拓扑的建立（zmq_bind,zmq_connect）和真实消息的传递（zmq_send,zmq_rev)。 前者同底层的传输地址协同工作，比如IP地址，而后者仅仅使用处理器（文件描述符）去定位具体的拓扑： /* Topology esta...
Difference between Math.Floor() and Math.Truncate()
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@Chris, I suggest you fix your description of Round, there's two ways to round (AwayFromZero and ToEven) and it doesn't round to the neares...
How to catch curl errors in PHP
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You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via ...
How to extract the first two characters of a string in shell scripting?
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answered Sep 10 '09 at 14:32
paxdiablopaxdiablo
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How to create a custom-shaped bitmap marker with Android map API v2 [duplicate]
...aw more complex and fancier stuff:
Bitmap.Config conf = Bitmap.Config.ARGB_8888;
Bitmap bmp = Bitmap.createBitmap(80, 80, conf);
Canvas canvas1 = new Canvas(bmp);
// paint defines the text color, stroke width and size
Paint color = new Paint();
color.setTextSize(35);
color.setColor(Color.BLACK);
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Constructor in an Interface?
I know it's not possible to define a constructor in an interface. But I'm wondering why, because I think it could be very useful.
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How to unzip a file using the command line? [closed]
...mmand "Expand-Archive '.\file.zip' '.\unziped\'"
– AK_
Mar 17 '18 at 21:11
@AK_ what about Windows 8 or 8.1?
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How to randomize (or permute) a dataframe rowwise and columnwise?
... Enrique Pérez HerreroEnrique Pérez Herrero
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add a com...
Selenium wait until document is ready
...it" function (use a WebDriverWait if you like, I find them ugly):
def wait_for(condition_function):
start_time = time.time()
while time.time() < start_time + 3:
if condition_function():
return True
else:
time.sleep(0.1)
raise Exception('Timeout...
What is the difference between the kernel space and the user space?
...ered Mar 26 '12 at 7:06
Aquarius_GirlAquarius_Girl
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