大约有 44,800 项符合查询结果(耗时:0.0699秒) [XML]
How do I get an apk file from an Android device?
...
24 Answers
24
Active
...
Spring @Transactional - isolation, propagation
...d option.
Example of when a dirty read can occur:
thread 1 thread 2
| |
write(x) |
| |
| read(x)
| |
rollback |
v v
value (x) is now dirty (incorrect)
So a sane default (if such can be cla...
Create module variables in Ruby
...
|
edited Jul 26 '19 at 17:08
answered Apr 16 '11 at 23:52
...
Set line spacing
...
238
Try the line-height property.
For example, 12px font-size and 4px distant from the bottom and...
Force Intellij IDEA to reread all maven dependencies
...
12 Answers
12
Active
...
Detect application heap size in Android
...lls you how many total bytes of heap your app is allowed to use.
For item 2 above: getMemoryClass()
which can be invoked as follows:
ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
int memoryClass = am.getMemoryClass();
Log.v("onCreate", "memoryClass:" + Integer.toStrin...
How do I sort an array of hashes by a value in the hash?
...
216
Ruby's sort doesn't sort in-place. (Do you have a Python background, perhaps?)
Ruby has sort! ...
What's the common practice for enums in Python? [duplicate]
... |
edited Mar 31 '09 at 20:39
answered Mar 31 '09 at 20:30
...
Python: Is it bad form to raise exceptions within __init__?
...
162
Raising exceptions within __init__() is absolutely fine. There's no other good way to indicate a...
pandas read_csv and filter columns with usecols
...pandas as pd
from StringIO import StringIO
csv = r"""dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5"""
df = pd.read_csv(StringIO(csv),
header=0,
index_col=["date", "loc"],
usecols=["date", "loc", "x"],...
