大约有 36,010 项符合查询结果（耗时：0.0991秒） [XML]
How can I remove the first line of a text file using bash/sed script?
...how they managed that; tail should just read a file line by line while sed does pretty complex operations involving interpreting a script, applying regular expressions and the like.
Note: You may be tempted to use
# THIS WILL GIVE YOU AN EMPTY FILE!
tail -n +2 "$FILE" > "$FILE"
but this will ...
When should I use double instead of decimal?
I can name three advantages to using double (or float ) instead of decimal :
12 Answers
...
Why define an anonymous function and pass it jQuery as the argument?
...t in when and why they execute. They are not exclusive of each other. They do not serve the same purpose.
JavaScript Modules
(function($) {
// Backbone code in here
})(jQuery);
This is a "JavaScript Module" pattern, implemented with an immediately invoking function.
http://addyosmani.com/re...
How to check that a string is a palindrome using regular expressions?
...the real world, some regexp languages allow for arbitrary functions, these don't count).
It is impossible to build a finite state machine that accepts all palindromes. The proof relies on the facts that we can easily build a string that requires an arbitrarily large number of nodes, namely the stri...
I can not find my.cnf on my windows computer [duplicate]
My computer is Windows XP.
6 Answers
6
...
Create empty file using python [duplicate]
...e it immediately after the open() statement finished - but it's cleaner to do it explicitely and relying on CPython-specific behaviour is not good either.
In case you want touch's behaviour (i.e. update the mtime in case the file exists):
import os
def touch(path):
with open(path, 'a'):
...
Python: Select subset from list based on index set
... @85: why are you worrying about performance? Write what you have to do, if it is slow, then test to find bottlenecks.
– Gary Kerr
Jul 5 '10 at 11:39
1
...
How can I replace every occurrence of a String in a file with PowerShell?
...ces of [MYID] in a given file with MyValue . What is the easiest way to do so?
12 Answers
...
Force browser to download image files on click
I need the browser to download the image files just as it does while clicking on an Excel sheet.
14 Answers
...
Cannot use ref or out parameter in lambda expressions
...
It does; question is why can't you; answer is you can.
– Ben Adams
Oct 22 '16 at 0:26
24
...