大约有 5,000 项符合查询结果（耗时：0.0233秒） [XML]
Android SDK installation doesn't find JDK
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98
I found the solution and it's beautifully stupid. I found Android SDK cannot detect JDK.
Press...
psql: FATAL: role “postgres” does not exist
...s new posgres user won't have a password?
– olaoluwa_98
Nov 30 '19
MongoDB - admin user not authorized
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Dan Dascalescu
98.2k3636 gold badges263263 silver badges333333 bronze badges
answered Apr 6 '15 at 13:23
s-hunters-h...
How do I use su to execute the rest of the bash script as that user?
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Dan DascalescuDan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
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Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
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98
As pointed out by other answers, in python they return floats probably because of historical re...
How to make a new List in Java
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Zoe
21.8k1212 gold badges8989 silver badges121121 bronze badges
answered May 13 '09 at 15:15
Dan VintonDan Vinton
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What's the difference between VARCHAR and CHAR?
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Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
answered Mar 21 '13 at 16:31
simplePers...
Using Default Arguments in a Function
I am confused about default values for PHP functions. Say I have a function like this:
12 Answers
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Limiting floats to two decimal points
...636838/(2**53)
13.949999999999999
>>> 234042163/(2**24)
13.949999988079071
>>> a = 13.946
>>> print(a)
13.946
>>> print("%.2f" % a)
13.95
>>> round(a,2)
13.949999999999999
>>> print("%.2f" % round(a, 2))
13.95
>>> print("{:.2f}".format...
How do you deal with configuration files in source control?
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I use this approach, I just have a main.php.tmpl and when I checkout a new copy just copy it to main,php. I add the main.php file to the ignore list to avoid commit it by accident.
– levhita
Sep 15 '08 at 18:10
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