大约有 45,000 项符合查询结果（耗时：0.0407秒） [XML]
Java Swing revalidate() vs repaint()
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@Arttu - it's less work, and therefore less prone to errors.
– kdgregory
May 14 '16 at 11:59
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What is the pythonic way to unpack tuples? [duplicate]
....5, so for instance statements like x, y, z = *(1, 2, 3) will work without error (as it should have been a long time ago)
– Nearoo
Jan 1 '16 at 16:05
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On duplicate key ignore? [duplicate]
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Would suggest NOT using INSERT IGNORE as it ignores ALL errors (ie its a sloppy global ignore).
Instead, since in your example tag is the unique key, use:
INSERT INTO table_tags (tag) VALUES ('tag_a'),('tab_b'),('tag_c') ON DUPLICATE KEY UPDATE tag=tag;
on duplicate key produce...
What does preceding a string literal with “r” mean? [duplicate]
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the backslash `\` cannot be the last charter or else an error SyntaxError: EOL while scanning string literal occurs. For Python3 it is print (r"Test\new")
– Arthur
May 23 '17 at 3:07
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Get table name by constraint name [duplicate]
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not working, getting error "Invalid object name 'USER_CONSTRAINTS'". please help.
– Jitendra Pancholi
Feb 5 '13 at 9:24
8
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Very Long If Statement in Python [duplicate]
...solution (stackoverflow.com/a/5253419/981933) otherwise PEP8 will throw an error at you. See: github.com/PyCQA/pep8/issues/126 and github.com/PyCQA/pep8/issues/386
– F Lekschas
Dec 9 '15 at 16:57
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List of Java processes
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Starting from Java 7, the simplest way and less error prone is to simply use the command jcmd that is part of the JDK such that it will work the same way on all OS.
Example:
> jcmd
5485 sun.tools.jcmd.JCmd
2125 MyProgram
jcmd allows to send diagnostic command req...
How to fix Terminal not loading ~/.bashrc on OS X Lion [closed]
...rks fine when I'm in the ~ directory, but if I'm anywhere else, I get an error loading .bashrc
3 Answers
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Best way to Format a Double value to 2 Decimal places [duplicate]
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No, there is no better way.
Actually you have an error in your pattern. What you want is:
DecimalFormat df = new DecimalFormat("#.00");
Note the "00", meaning exactly two decimal places.
If you use "#.##" (# means "optional" digit), it will drop trailing zeroes - ie ne...
How to create user for a db in postgresql? [closed]
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@Darji Krunal: what's the PHP error, how does it look like?
– Vidul
Jun 2 '12 at 10:02
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