大约有 43,200 项符合查询结果（耗时：0.0420秒） [XML]
Setting JDK in Eclipse
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146
You manage the list of available compilers in the Window -> Preferences -> Java -> In...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
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91
The order of evaluation of subexpressions, including
the arguments of a function call and
oper...
Storing sex (gender) in database
...nge of Values
------------------------------------------------
TinyINT 1 255 (zero to 255)
INT 4 - 2,147,483,648 to 2,147,483,647
BIT 1 (2 if 9+ columns) 2 (0 and 1)
CHAR(1) 1 26 if case insensitive, 52 otherwise
The B...
When is memoization automatic in GHC Haskell?
I can't figure out why m1 is apparently memoized while m2 is not in the following:
4 Answers
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Truncating floats in Python
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117
First, the function, for those who just want some copy-and-paste code:
def truncate(f, n):
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How to sleep for five seconds in a batch file/cmd [duplicate]
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One hack is to (mis)use the ping command:
ping 127.0.0.1 -n 6 > nul
Explanation:
ping is a system utility that sends ping requests. ping is available on all versions of Windows.
127.0.0.1 is the IP address of localhost. This IP address is guaranteed to always resol...
Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
... want to require a relative file in Ruby and I want it to work in both 1.8.x and >=1.9.2?
11 Answers
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Can the Unix list command 'ls' output numerical chmod permissions?
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it almost can ..
ls -l | awk '{k=0;for(i=0;i<=8;i++)k+=((substr($1,i+2,1)~/[rwx]/) \
*2^(8-i));if(k)printf("%0o ",k);print}'
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SQL Server dynamic PIVOT query?
...me,
category varchar(3),
amount money
)
insert into temp values ('1/1/2012', 'ABC', 1000.00)
insert into temp values ('2/1/2012', 'DEF', 500.00)
insert into temp values ('2/1/2012', 'GHI', 800.00)
insert into temp values ('2/10/2012', 'DEF', 700.00)
insert into temp values ('3/1/2012', 'ABC...
Easy way to test a URL for 404 in PHP?
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15 Answers
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