大约有 43,200 项符合查询结果（耗时：0.0464秒） [XML]
Is SQL or even TSQL Turing Complete?
...
|
edited Nov 11 '13 at 4:45
Qantas 94 Heavy
14.4k1616 gold badges6060 silver badges7777 bronze badges
...
javascript: recursive anonymous function?
...
19 Answers
19
Active
...
Flatten nested dictionaries, compressing keys
...ms.append((new_key, v))
return dict(items)
>>> flatten({'a': 1, 'c': {'a': 2, 'b': {'x': 5, 'y' : 10}}, 'd': [1, 2, 3]})
{'a': 1, 'c_a': 2, 'c_b_x': 5, 'd': [1, 2, 3], 'c_b_y': 10}
share
|
...
How to convert a data frame column to numeric type?
...
18 Answers
18
Active
...
Best Practice: Software Versioning [closed]
...
12 Answers
12
Active
...
Extracting bits with a single multiplication
...turns uninteresting bits to zeros. In the above case, your mask would be 00100100 and the result 00a00b00.
Now the hard part: turning that into ab.......
A multiplication is a bunch of shift-and-add operations. The key is to allow overflow to "shift away" the bits we don't need and put the ones w...
What is the >>>= operator in C?
... compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???"
...