大约有 13,071 项符合查询结果（耗时：0.0209秒） [XML]
Can grep show only words that match search pattern?
Is there a way to make grep output "words" from files that match the search expression?
14 Answers
...
How to instantiate a File object in JavaScript?
...e's a File object in JavaScript. I want to instantiate one for testing purposes.
6 Answers
...
What's the best way to develop a sideswipe menu like the one in Facebook's new iOS app?
It appears that side-swipe menus are becoming a more common interface element as more information gets crammed into each iPhone app. Facebook has included it in their latest version and the new Gmail app appears to include it as well . I was wondering if anybody had thoughts on the most efficient...
Difference between freeze and seal
I just heard about the JavaScript methods freeze and seal , which can be used to make any Object immutable.
8 Answers
...
How to print without newline or space?
...
In Python 3, you can use the sep= and end= parameters of the print function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b', 'c'...
java.net.ConnectException: Connection refused
... implement a TCP connection, everything works fine from the server's side but when I run the client program (from client computer) I get the following error:
...
How to check if a column exists in a SQL Server table?
I need to add a specific column if it does not exist. I have something like the following, but it always returns false:
31 ...
What is the alternative for ~ (user's home directory) on Windows command prompt?
I'm trying to use the command prompt to move some files,
I am used to the linux terminal where I use ~ to specify the my home directory
I've looked everywhere but I couldn't seem to find it for windows command prompt ( Documents and Settings\[user] )
...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
... very large dataset that has some non-standard characters in it. I need to use unicode, as per the job specs, but I am baffled. (And quite possibly doing it all wrong.)
...
Command not found when using sudo
...
Permission denied
In order to run a script the file must have an executable permission bit set.
In order to fully understand Linux file permissions you can study the documentation for the chmod command. chmod, an abbreviation of change mode, is the comman...