大约有 41,000 项符合查询结果（耗时：0.0760秒） [XML]
How to check if there exists a process with a given pid in Python?
... if the pid is not running, and do nothing otherwise.
import os
def check_pid(pid):
""" Check For the existence of a unix pid. """
try:
os.kill(pid, 0)
except OSError:
return False
else:
return True
...
What is the difference between named and positional parameters in Dart?
...languages, called positional because "it's the first parameter, or second, etc". Named parameters are called like that because you can actually identify them by name and not by position (if you switch the position of two named params, it doesn't matter). See the answer above from Savaranaraja
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Is there a Java reflection utility to do a deep comparison of two objects?
...preserving the equals contract"
Besides what good does a boolean method really do you anyway? It'd be nice to actually encapsulate all the differences between the original and the clone, don't you think? Also, I'll assume here that you don't want to be bothered with writing/maintaining comparison c...
jQuery 1.9 .live() is not a function
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It supplies jquery deprecated but needed functions like "live", "browser" etc
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Check whether a cell contains a substring
... group. To do this I am looking for the word "builder" or "construction", etc. So -
=IF(OR(COUNTIF(A1,"*builder*"),COUNTIF(A1,"*builder*")),"Builder","Community")
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MySQL Error 1215: Cannot add foreign key constraint
... Thanks. This turned out to be the issue. Staff.Emp_ID was a SMALLINT, while the referencing column was an INT. Sometimes it's the little things...
– Robert B
Jun 10 '13 at 14:08
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How to draw a custom UIView that is just a circle - iPhone app
How would I go about drawing a custom UIView that is literally just a ball (a 2D circle)? Would I just override the drawRect method? And can someone show me the code for drawing a blue circle?
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Downloading a file from spring controllers
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@RequestMapping(value = "/files/{file_name}", method = RequestMethod.GET)
public void getFile(
@PathVariable("file_name") String fileName,
HttpServletResponse response) {
try {
// get your file as InputStream
InputStream is = ...;
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How to generate a random string of a fixed length in Go?
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For a hard-to-guess secret--a password, a crypto key, etc.--never use math/rand; use crypto/rand (like @Not_A_Golfer's option 1) instead.
– twotwotwo
Aug 6 '15 at 5:53
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Append a Lists Contents to another List C#
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Here is my example:
private List<int> m_machinePorts = new List<int>();
public List<int> machinePorts
{
get { return m_machinePorts; }
}
Init()
{
// Custom function to get available ethernet ports
List<i...