大约有 3,800 项符合查询结果（耗时：0.0315秒） [XML]
Fastest hash for non-cryptographic uses?
...3 0.206954240799
17 - ripemd160 0.207638263702
18 - tiger192,4 0.208125829697
19 - tiger160,4 0.208438634872
20 - tiger128,4 0.209359407425
21 - haval128,3 0.210256814957
22 - sha256 0.212738037109
23 - ripemd320 0.215386390686
24 - haval192,3 0.215610980988
25 - sha224 0.218329429626
26 - haval192,...
Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
...tl=0) 11,12
# ATTRIB: # ..snip..
.Internal(inspect(newDT))
# @0000000003D97A58 19 VECSXP g0c7 [OBJ,NAM(2),ATT] (len=2, tl=100)
# @00000000040ED7F8 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 1,2
# @00000000040ED8D8 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 11,200
# ATTRIB: # ..snip..
Notice how eve...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
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Alec BennettAlec Bennett
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
... 1024 bytes 8192 bytes
md5 30055.02k 94158.96k 219602.97k 329008.21k 384150.47k
sha1 31261.12k 95676.48k 224357.36k 332756.21k 396864.62k
Update: 10 months later with OS X 10.9, SHA-1 got slower on the same machine:
$ openssl speed md5 sha1
OpenSSL 0....
Server.MapPath(“.”), Server.MapPath(“~”), Server.MapPath(@“\”), ...
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splattnesplattne
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Global variables in R
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97
I found a solution for how to set a global variable in a mailinglist posting via assign:
a <...
List Git commits not pushed to the origin yet [duplicate]
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Aristotle PagaltzisAristotle Pagaltzis
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Can we have multiline comments in a Java properties file?
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zabocozaboco
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Is there a way to only install the mysql client (Linux)?
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Hector MaganaHector Magana
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Enforcing spaces in string resources [duplicate]
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97
As an alternative to the answer given by Andreas Klöber you can use this method:
<string n...