大约有 30,000 项符合查询结果（耗时：0.0347秒） [XML]
How can I efficiently download a large file using Go?
...o you can use any functions that take a Reader, to, e.g. read a chunk at a time rather than all at once. In this specific case, io.Copy() does the gruntwork for you.
share
|
improve this answer
...
Extending the User model with custom fields in Django
...OFILE_MODULE = 'YOURAPP.UserProfile'
This will create a userprofile each time a user is saved if it is created.
You can then use
user.get_profile().whatever
Here is some more info from the docs
http://docs.djangoproject.com/en/dev/topics/auth/#storing-additional-information-about-users
Upd...
From io.Reader to string in Go
...I can't imagine a scenario where transmission latency won't be a squillion times larger than the trivial time it takes to copy the byte array. Any functional language copies this type of immutable stuff around all over the place, and still runs plenty fast.
– see sharper
...
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...readable.
Other answers have suggested that a new string is created every time you use "". This is not true - due to string interning, it will be created either once per assembly or once per AppDomain (or possibly once for the whole process - not sure on that front). This difference is negligible -...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
...detailed report on how 4chan defeated reCAPTCHA, and used it to manipulate Time.com's annual TIME 100 Poll results.
Hacking Recaptcha (aka ‘The Penis Flood’)
The next tactic used was to see if they could find a flaw in the reCAPTCHA implementation. One thing they discovered about reCAP...
Print multiple arguments in Python
...ting with numbers (useful for reordering or printing the same one multiple times):
print("Total score for {0} is {1}".format(name, score))
Use new-style string formatting with explicit names:
print("Total score for {n} is {s}".format(n=name, s=score))
Concatenate strings:
print("Total score for...
When is memoization automatic in GHC Haskell?
...t does, however, compute any given expression in the code at most once per time that its surrounding lambda-expression is entered, or at most once ever if it is at top level. Determining where the lambda-expressions are can be a little tricky when you use syntactic sugar like in your example, so le...
Why does struct alignment depend on whether a field type is primitive or user-defined?
In Noda Time v2, we're moving to nanosecond resolution. That means we can no longer use an 8-byte integer to represent the whole range of time we're interested in. That has prompted me to investigate the memory usage of the (many) structs of Noda Time, which has in turn led me to uncover a slight ...
How can I time a code segment for testing performance with Pythons timeit?
...on script which works just as it should, but I need to write the execution time. I've googled that I should use timeit but I can't seem to get it to work.
...
What's a concise way to check that environment variables are set in a Unix shell script?
...e original shell comment notation (before '#' to end of line). For a long time, Bourne shell scripts had a colon as the first character. The C Shell would read a script and use the first character to determine whether it was for the C Shell (a '#' hash) or the Bourne shell (a ':' colon). Then the...