大约有 46,000 项符合查询结果（耗时：0.0806秒） [XML]
How to dump a table to console?
...mp it to std out or the console via a print statement or something quick and dirty but I can't figure out how. I'm looking for the rough equivalent that I'd get when printing an NSDictionary using gdb.
...
In Python, how do I iterate over a dictionary in sorted key order?
...
This is not obvious. In fact, items() creates a list and therefore uses memory, whereas iteritems() essentially does not use memory. What to use mostly depend on the size of the dictionary. Furthermore, the automatic Python 2 to Python 3 conversion tool (2to3) automatically tak...
Why does a function with no parameters (compared to the actual function definition) compile?
...'m confused as to why it is compiling. There are two points I don't understand.
10 Answers
...
Loop through all nested dictionary values?
I'm trying to loop through a dictionary and print out all key value pairs where the value is not a nested dictionary. If the value is a dictionary I want to go into it and print out its key value pairs...etc. Any help?
...
TreeMap sort by value
...s Integer using ==. This is almost always wrong, since == with Integer operands is a reference equality, not value equality.
System.out.println(new Integer(0) == new Integer(0)); // prints "false"!!!
Related questions
When comparing two Integers in Java does auto-unboxing occur? (NO!!!)
Is ...
month name to month number and vice versa in python
...
Hmmm, I did this and it worked... d = dict((v,k) for k,v in enumerate(calendar.month_abbr))
– Mark_Masoul
Aug 5 '10 at 18:58
...
What's “P=NP?”, and why is it such a famous question? [closed]
... is perhaps the most famous in all of Computer Science. What does it mean? And why is it so interesting?
6 Answers
...
How to use OpenSSL to encrypt/decrypt files?
I want to crypt and decrypt one file using one password.
10 Answers
10
...
How much faster is Redis than mongoDB?
It's widely mentioned that Redis is "Blazing Fast" and mongoDB is fast too. But, I'm having trouble finding actual numbers comparing the results of the two. Given similar configurations, features and operations (and maybe showing how the factor changes with different configurations and operations), ...
Check free disk space for current partition in bash
... am writing an installer in bash. The user will go to the target directory and runs the install script, so the first action should be to check that there is enough space. I know that df will report all file systems, but I was wondering if there was a way to get the free space just for the partition ...