大约有 48,000 项符合查询结果（耗时：0.0349秒） [XML]
if else in a list comprehension [duplicate]
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answered Dec 10 '10 at 6:48
user225312user225312
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How to check iOS version?
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1012
The quick answer …
As of Swift 2.0, you can use #available in an if or guard to protect c...
Switch statement: must default be the last case?
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10 Answers
10
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Speed up the loop operation in R
...on). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime.
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How to determine if a number is a prime with regex?
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answered May 8 '10 at 18:10
Platinum AzurePlatinum Azure
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If vs. Switch Speed
...Rudolph
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6
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How to find all combinations of coins when given some dollar value
...or any other convenient computer algebra system) to compute the answer for 10^10^6 dollars in a couple seconds in three lines of code.
(And this was long enough ago that that’s a couple of seconds on a 75Mhz Pentium...)
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Compare two List objects for equality, ignoring order [duplicate]
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answered Sep 8 '10 at 16:56
GuffaGuffa
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How to check if a line is blank using regex
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edited Feb 10 '17 at 15:12
Elliot Labs LLC
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answered...
How to do a logical OR operation in shell scripting
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1001
This should work:
#!/bin/bash
if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then
echo "hello"
f...