大约有 11,295 项符合查询结果（耗时：0.0271秒） [XML]
Convert datetime object to a String of date only in Python
I see a lot on converting a date string to an datetime object in Python, but I want to go the other way.
I've got
11 A...
For..In loops in JavaScript - key value pairs
...
If you can use ES6 natively or with Babel (js compiler) then you could do the following:
const test = {a: 1, b: 2, c: 3};
for (const [key, value] of Object.entries(test)) {
console.log(key, value);
}
Which will print out this output:
a 1
b 2...
What is the difference between substr and substring?
What is the difference between
10 Answers
10
...
How can I reload .emacs after changing it?
...ess return twice to accept the default filename, which is the current file being edited).
You can also just move the point to the end of any sexp and press C-xC-e to execute just that sexp. Usually it's not necessary to reload the whole file if you're just changing a line or two.
...
How to “grep” for a filename instead of the contents of a file?
...eed to use find instead of grep in this case.
You can also use find in combination with grep or egrep:
$ find | grep "f[[:alnum:]]\.frm"
share
|
improve this answer
|
foll...
Difference between UTF-8 and UTF-16?
Difference between UTF-8 and UTF-16?
Why do we need these?
5 Answers
5
...
Perform an action in every sub-directory using Bash
I am working on a script that needs to perform an action in every sub-directory of a specific folder.
9 Answers
...
Are members of a C++ struct initialized to 0 by default?
...// receives no initialization
Snapshot s = {}; // value initializes all members
The second will make all members zero, the first leaves them at unspecified values. Note that it is recursive:
struct Parent { Snapshot s; };
Parent p; // receives no initialization
Parent p = {}; // value initializes...
Can you have if-then-else logic in SQL? [duplicate]
I need to do select data from a table based on some kind of priority like so:
7 Answers
...
Create a pointer to two-dimensional array
... = l_matrix;
Then you can enjoy life again :)
matrix_ptr[0][1] = ...;
Beware of the pointer/array world in C, much confusion is around this.
Edit
Reviewing some of the other answers here, because the comment fields are too short to do there. Multiple alternatives were proposed, but it wasn'...