大约有 44,200 项符合查询结果(耗时:0.0520秒) [XML]
HTML5 Pre-resize images before uploading
...e.target.result}
reader.readAsDataURL(file);
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var MAX_WIDTH = 800;
var MAX_HEIGHT = 600;
var width = img.width;
var height = img.height;
if (width > height) {
if (width > MAX_WIDTH) {
height *= MAX_WIDTH / width;
width = ...
How do I read a text file of about 2 GB? [duplicate]
I have a .txt file whose memory is more than 2 GB. The problem is I cannot open it with Notepad, Notepad++ or any other editor programs.
...
Python timedelta in years
...lace(year=from_date.year - years)
except ValueError:
# Must be 2/29!
assert from_date.month == 2 and from_date.day == 29 # can be removed
return from_date.replace(month=2, day=28,
year=from_date.year-years)
If it's 2/29, and 18 years ago...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...':
the_thing = 1
elif something == 'that':
the_thing = 2
elif something == 'there':
the_thing = 3
else:
the_thing = 4
2.py
something = 'something'
options = {'this': 1, 'that': 2, 'there': 3}
for i in xrange(1000000):
the_thing = options.get(someth...
dynamically add and remove view to viewpager
...
278
After figuring out which ViewPager methods are called by ViewPager and which are for other pur...
Can't update Macports (with Mac OS X Mavericks)
...
282
Install the "Command Line Tools" first:
sudo xcode-select --install
(Explicitly agreeing to...
Dynamically replace the contents of a C# method?
...
220
Disclosure: Harmony is a library that was written and is maintained by me, the author of th...
mongodb group values by multiple fields
...
207
TLDR Summary
In modern MongoDB releases you can brute force this with $slice just off the bas...
Overriding id on create in ActiveRecord
...
answered Oct 2 '09 at 20:55
Jeff DeanJeff Dean
...