大约有 47,000 项符合查询结果(耗时:0.0830秒) [XML]
Django self-referential foreign key
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Zags
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answered Mar 8 '13 at 2:25
Jared ForsythJared F...
Left-pad printf with spaces
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If you want the word "Hello" to print in a column that's 40 characters wide, with spaces padding the left, use the following.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you ...
How do I enumerate through a JObject?
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answered May 10 '12 at 23:35
svicksvick
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Postgres: Distinct but only for one column
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edited Jun 20 at 9:12
Community♦
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answered Jun 4 '13 at 12:36
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Instance v state variables in react.js
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answered Aug 8 '14 at 20:50
BrigandBrigand
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How to create abstract properties in python abstract classes
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edited Jan 29 '15 at 7:07
Janne Karila
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answer...
Can Java 8 code be compiled to run on Java 7 JVM?
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answered Mar 18 '14 at 22:30
JesperEJesperE
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Center a position:fixed element
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You basically need to set top and left to 50% to center the left-top corner of the div. You also need to set the margin-top and margin-left to the negative half of the div's height and width to shift the center towards the middle of the div.
Thus, provided a <!DOC...
Remove a folder from git tracking
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answered May 20 '15 at 21:46
Tod BirdsallTod Birdsall
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Remove autolayout (constraints) in Interface Builder
...erface builder. Thanks!
– Nick
Oct 30 '12 at 17:05
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I had to remove the "Use Auto Layout" to ena...
