大约有 35,450 项符合查询结果(耗时:0.0375秒) [XML]

https://stackoverflow.com/ques... 

How to get min/max of two integers in Postgres/SQL?

... 306 Have a look at GREATEST and LEAST. UPDATE my_table SET my_column = GREATEST(my_column - 10, 0)...
https://stackoverflow.com/ques... 

How to override Backbone.sync?

... | edited Oct 20 '15 at 22:29 Yura 2,5112222 silver badges3030 bronze badges answered Feb 23 ...
https://stackoverflow.com/ques... 

regex for zip-code

... | edited Apr 5 '10 at 6:57 answered Apr 5 '10 at 6:45 ...
https://stackoverflow.com/ques... 

Extract a regular expression match

...nd adds a few that are missing: library(stringr) str_locate("aaa12xxx", "[0-9]+") # start end # [1,] 4 5 str_extract("aaa12xxx", "[0-9]+") # [1] "12" share | improve this answer ...
https://stackoverflow.com/ques... 

pyplot axes labels for subplots

...mmon labels. import random import matplotlib.pyplot as plt x = range(1, 101) y1 = [random.randint(1, 100) for _ in xrange(len(x))] y2 = [random.randint(1, 100) for _ in xrange(len(x))] fig = plt.figure() ax = fig.add_subplot(111) # The big subplot ax1 = fig.add_subplot(211) ax2 = fig.add_subpl...
https://stackoverflow.com/ques... 

Code Golf - π day

... In dc: 88 and 93 93 94 96 102 105 129 138 141 chars Just in case, I am using OpenBSD and some supposedly non-portable extensions at this point. 93 chars. This is based on same formula as FORTRAN solution (slightly different results than test cases). ...
https://stackoverflow.com/ques... 

How do Trigonometric functions work?

... a standard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions f...
https://stackoverflow.com/ques... 

Rotating and spacing axis labels in ggplot2

... Change the last line to q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1)) By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead: The image above is from thi...
https://stackoverflow.com/ques... 

How to sort objects by multiple keys in Python?

...ult: return mult * result else: return 0 return sorted(items, cmp=comparer) You can call it like this: b = [{u'TOT_PTS_Misc': u'Utley, Alex', u'Total_Points': 96.0}, {u'TOT_PTS_Misc': u'Russo, Brandon', u'Total_Points': 96.0}, {u'TOT_PTS_Misc': u'...
https://stackoverflow.com/ques... 

Getting thread id of current method call

... 230 NSLog(@"%@", [NSThread currentThread]); ...