大约有 45,000 项符合查询结果（耗时：0.0425秒） [XML]
C dynamically growing array
...
I can use pointers, but I am a bit afraid of using them.
If you need a dynamic array, you can't escape pointers. Why are you afraid though? They won't bite (as long as you're careful, that is). There's no built-in dynamic array in C, you'll just have to w...
Generating an MD5 checksum of a file
...pen(fname, 'rb'))).digest()) for fname in fnamelst]
If you only want 128 bits worth of digest you can do .digest()[:16].
This will give you a list of tuples, each tuple containing the name of its file and its hash.
Again I strongly question your use of MD5. You should be at least using SHA1, and...
Download multiple files with a single action
...tton does nothing Google Chrome Version 76.0.3809.100 (Official Build) (64-bit).
– 1934286
Aug 15 '19 at 19:10
1
...
Javascript parseInt() with leading zeros
...
The issue seems to have changed now in most browsers.
Firefox 51.0.1 (64-bit)
parseInt("09") // 9
Chrome 55.0.2883.95 (64-bit)
parseInt("09") // 9
Safari 10.0 (12602.1.50.0.10)
parseInt("09") // 9
=====
Recommended Practice
Having said that, just to be on the safer side and to avo...
Convert PDF to image with high resolution
...
It appears that the following works:
convert \
-verbose \
-density 150 \
-trim \
test.pdf \
-quality 100 \
-flatten \
-sharpen 0x1.0 \
24-18.jpg
It results in the left image. Compa...
Is there a way to iterate over a slice in reverse in Go?
... The effective go page an example, but this one is actually a bit nicer and declares fewer variables.
– Kevin Cantwell
Dec 5 '13 at 21:07
3
...
Search for one value in any column of any table inside a database
...several other features such as relationship diagrams and such…
I was a bit slow on large (40GB TFS Database) databases though…
Apart from this there is also SSMS Tools pack that offers a lot of other features that are quite useful even though these are not directly related to searching tex...
Evaluating a mathematical expression in a string
...
eval is evil
eval("__import__('os').remove('important file')") # arbitrary commands
eval("9**9**9**9**9**9**9**9", {'__builtins__': None}) # CPU, memory
Note: even if you use set __builtins__ to None it still might be possible to break out using introspection:
eval('(1).__class__.__bases_...
What are the file limits in Git (number and size)?
...ver really looks at less than the whole repo. Even if you
limit things a bit (ie check out just a portion, or have the history go
back just a bit), git ends up still always caring about the whole thing,
and carrying the knowledge around.
So git scales really badly if you force it to look ...
How do you get a timestamp in JavaScript?
...es:
By providing |, you tell the interpreter to do a binary OR operation. Bit operations require absolute numbers which turns the decimal result from Date.now() / 1000 into an integer.
During that conversion, decimals are removed, resulting in the same result as using Math.floor() but using less...