大约有 13,700 项符合查询结果（耗时：0.0120秒） [XML]
Replace non-numeric with empty string
...ain()
{
Console.WriteLine("Init...");
string phone = "001-12-34-56-78-90";
var sw = new Stopwatch();
sw.Start();
for (int i = 0; i < 1000000; i++)
{
DigitsOnly(phone);
}
sw.Stop();
Console.WriteLine("Time: "...
Chmod 777 to a folder and all contents [duplicate]
...sions at all --- 000
1 Only execute --x 001
2 Only write -w- 010
3 Write and execute -wx 011
4 Only read r-- 100
5 Read and execute r-x 101
6 Read and write ...
All combinations of a list of lists
...-> Ax Ay Bx By Cx Cy Dx Dy
# product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111
pools = map(tuple, args) * kwds.get('repeat', 1)
result = [[]]
for pool in pools:
result = [x+[y] for x in result for y in pool]
for prod in result:
yield tuple(prod...
Get the cartesian product of a series of lists?
...-> Ax Ay Bx By Cx Cy Dx Dy
# product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111
pools = map(tuple, args) * kwds.get('repeat', 1)
result = [[]]
for pool in pools:
result = [x+[y] for x in result for y in pool]
for prod in result:
yield tuple(prod...
How to process each line received as a result of grep command
... the usage of IFS= and read -r according to the recommendations in BashFAQ/001: How can I read a file (data stream, variable) line-by-line (and/or field-by-field)?:
The -r option to read prevents backslash interpretation (usually used
as a backslash newline pair, to continue over multiple line...
Build vs new in Rails 3
...
henrym:~/testapp$ rails c
Loading development environment (Rails 3.0.4)
r:001 > (some_firm = Firm.new).save # Create and save a new Firm
#=> true
r:002 > some_firm.clients # No clients yet
#=> []
r:003 > some_firm.clients.new # Create a new client
#=> #<Client...
Uncaught SyntaxError: Unexpected token with JSON.parse
...move non-printable and other non-valid JSON chars
s = s.replace(/[\u0000-\u0019]+/g,"");
var o = JSON.parse(s);
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How do I read and parse an XML file in C#?
... edited Feb 6 '19 at 17:52
LW001
1,70944 gold badges1818 silver badges2525 bronze badges
answered Mar 26 '09 at 12:38
...
Floating point vs integer calculations on modern hardware
...WIN32
struct _timeb tb;
_ftime(&tb);
return (double)tb.time + (0.001 * (double)tb.millitm);
# else
struct timeval tv;
if(gettimeofday(&tv, 0) < 0) {
perror("oops");
}
return (double)tv.tv_sec + (0.000001 * (double)tv.tv_usec);
# endif
}
template< typename Type >
v...
Rails formatting date
...
%Y - Year with century (can be negative, 4 digits at least)
-0001, 0000, 1995, 2009, 14292, etc.
%C - year / 100 (round down. 20 in 2009)
%y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
...