大约有 2,000 项符合查询结果（耗时：0.0246秒） [XML]
How to get all subsets of a set? (powerset)
...hughdbrown
40.5k2020 gold badges8080 silver badges101101 bronze badges
6
...
What are the undocumented features and limitations of the Windows FINDSTR command?
...reated as 101
186 treated as 221 211 treated as 043 239 treated as 110
187 treated as 043 212 treated as 043 240 treated as 061
188 treated as 043 213 treated as 043 242 treated as 061
189 treated as 043 214 treated as 043 243 treated as 061
190 treated as 043 215...
HashSet vs LinkedHashSet
... 91 94
100 178 75 73
1000 216 110 72
10000 711 215 100
---------- LinkedHashSet ----------
size add contains iterate
10 350 65 83
100 270 74 55
1000 303 111 ...
How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
... $str = chr($unicode_c_val); } //U-00000080 - U-000007FF: 110xxxxx 10xxxxxx
else if($unicode_c_val >= 0x80 && $unicode_c_val <= 0x7FF){ $h=0xC0; // 11000000
$c1 = $unicode_c_val >> 6 | $h;
$c2 = ($unicode_c_val & 0x3F) | $f;
...
Regular expression to match numbers with or without commas and decimals in text
...
#### NUMBERS AND DECIMALS ONLY ####
#No commas allowed
#Pass: (1000.0), (001), (.001)
#Fail: (1,000.0)
^\d*\.?\d+$
#No commas allowed
#Can't start with "."
#Pass: (0.01)
#Fail: (.01)
^(\d+\.)?\d+$
#### CURRENCY ####
#No commas allowed
#"$" optional
#Can't start with "."
#Either 0 or 2 decimal di...
How many bytes does one Unicode character take?
...xxxx 0x80..0xBF Continuation byte: one of 1-3 bytes following the first
110xxxxx 0xC0..0xDF First byte of a 2-byte character encoding
1110xxxx 0xE0..0xEF First byte of a 3-byte character encoding
11110xxx 0xF0..0xF7 First byte of a 4-byte character encoding
So the quick answer is: it t...
Batch File; List files in directory, only filenames?
...f tokens^=* %%i in ('where .:*')do %%~nxi
Output:
file_0003.xlsx
file_0001.txt
file_0002.log
where .:*
Output:
G:\SO_en-EN\Q23228983\file_0003.xlsx
G:\SO_en-EN\Q23228983\file_0001.txt
G:\SO_en-EN\Q23228983\file_0002.log
For recursively:
where /r . *
Output:
G:\SO_en-EN\Q23228983\file_0...
Two way/reverse map [duplicate]
...
Sasha ChedygovSasha Chedygov
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...
Convert object string to JSON
...tthew CrumleyMatthew Crumley
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...
Sorting multiple keys with Unix sort
...one below, it would have concatenated column 1 and 2 making 1,10 sorted as 110
~/test>sort -t, -k1,2n -k3,3 -k4,4n -k5d sort.csv
2,2,b,20,F
2,2,b,22,Ga
2,2,c,19,Ga
2,2,c,19,Gb,hi
2,2,c,19,Gb,hj
2,3,a,9,C
1,10,b,22,Ga
s...