大约有 30,000 项符合查询结果（耗时：0.0479秒） [XML]
Where to put include statements, header or source?
Should I put the includes in the header file or the source file? If the header file contains the include statements, then if I include that header file in my source, then will my source file have all of the included files that were in my header? Or should I just include them in my source file only?
...
ValueError: math domain error
... math import log
>>> log(-1)
Traceback (most recent call last):
File "<pyshell#59>", line 1, in <module>
log(-1)
ValueError: math domain error
Without knowing what your newtonRaphson2 function does, I'm not sure I can guess where the invalid x[2] value is coming from, bu...
How to use GROUP BY to concatenate strings in MySQL?
...
SELECT id, GROUP_CONCAT(name SEPARATOR ' ') FROM table GROUP BY id;
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
From the link above, GROUP_CONCAT: This function returns a string result wit...
Why does Vim save files with a ~ extension?
I've found that while using Vim on Windows Vim saves the file, a .ext.swp file that's deleted on closing the Vim window and a .ext~ file.
...
CSS selector with period in ID
The HTML spec allows for periods (.) in an id:
2 Answers
2
...
How to get URI from an asset File?
I have been trying to get the URI path for an asset file.
11 Answers
11
...
How are the points in CSS specificity calculated
...earching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/
7 Answers
...
Merge PDF files
Is it possible, using Python, to merge separate PDF files?
9 Answers
9
...
How do I get the full path of the current file's directory?
I want to get the current file's directory path.
I tried:
15 Answers
15
...
Concatenating multiple text files into a single file in Bash
What is the quickest and most pragmatic way to combine all *.txt file in a directory into one large text file?
12 Answers
...