大约有 43,500 项符合查询结果（耗时：0.0566秒） [XML]
What's the best way to inverse sort in scala?
...
244
There may be the obvious way of changing the sign, if you sort by some numeric value
list.sor...
What is the good python3 equivalent for auto tuple unpacking in lambda?
Consider the following python2 code
8 Answers
8
...
What does “The APR based Apache Tomcat Native library was not found” mean?
...
12 Answers
12
Active
...
iOS multiline label in Interface builder
...
answered Jul 2 '11 at 14:27
akashivskyyakashivskyy
39k1414 gold badges101101 silver badges113113 bronze badges
...
How to get row from R data.frame
...is, for example:
#Add your data
x <- structure(list(A = c(5, 3.5, 3.25, 4.25, 1.5 ),
B = c(4.25, 4, 4, 4.5, 4.5 ),
C = c(4.5, 2.5, 4, 2.25, 3 )
),
.Names = c("A", "B", "C"),
class = "da...
Read first N lines of a file in python
...
249
Python 2
with open("datafile") as myfile:
head = [next(myfile) for x in xrange(N)]
print ...
Checking the equality of two slices
...
Stephen WeinbergStephen Weinberg
41.2k1212 gold badges112112 silver badges103103 bronze badges
...
How to print the full traceback without halting the program?
...in some corner cases, you will not obtain what you would expect. In Python 2.x:
import traceback
try:
raise TypeError("Oups!")
except Exception, err:
try:
raise TypeError("Again !?!")
except:
pass
traceback.print_exc()
...will display the traceback of the last ex...
Generator Expressions vs. List Comprehension
...
294
John's answer is good (that list comprehensions are better when you want to iterate over somet...
Convert JavaScript string in dot notation into an object reference
...
26 Answers
26
Active
...