大约有 42,000 项符合查询结果(耗时:0.0571秒) [XML]
How can I get `find` to ignore .svn directories?
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64
John, I'm the author of ack, and if you can give me details of the speed problems of ack vs. grep, I'd appreciate it. They've been complet...
how to convert from int to char*?
...er to a nul-terminated base-10 representation. 10 isn't enough for -2147483647.
– Steve Jessop
Jun 1 '12 at 9:12
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MySQL ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
...'@'%' through a socket.
root@myhost:/home/mysql-5.5.16-linux2.6-x86_64# ./mysql -ubill -ppass --socket=/tmp/mysql-5.5.sock
Welcome to the MySQL monitor (...)
mysql> SELECT user, host FROM mysql.user;
+------+-----------+
| user | host |
+------+-----------+
| ...
Groovy Shell warning “Could not open/create prefs root node …”
...ft (Windows 10 seems to now have this here: HKEY_LOCAL_MACHINE\Software\WOW6432Node\JavaSoft)
Right click on the JavaSoft folder and click on New -> Key
Name the new Key Prefs and everything should work.
Alternatively, save and execute a *.reg file with the following content:
Windows Registry ...
Add column with number of days between dates in DataFrame pandas
...f['B'] = pd.to_datetime(df['B'])
In [11]: df.dtypes # if already datetime64 you don't need to use to_datetime
Out[11]:
A datetime64[ns]
B datetime64[ns]
dtype: object
In [12]: df['A'] - df['B']
Out[12]:
one -58 days
two -26 days
dtype: timedelta64[ns]
In [13]: df['C'] = df['A'] - df['B...
Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
...ntelliJ 13 after upgrading from 12.
What worked for me was editing the idea64.vmoptions in the bin folder and setting the max heap to 8 GB (was 512 MB) and the Max PermGen to at least 1GB (was 300MB).Example below:
-Xms128m
-Xmx8192m
-XX:MaxPermSize=1024m
Upon restart it was much faster.
For Int...
Types in Objective-C on iOS
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SHRT_MAX: 32767
INT_MIN: -2147483648
INT_MAX: 2147483647
LONG_MIN: -2147483648
LONG_MAX: 2147483647
ULONG_MAX: 4294967295
LLONG_MIN: -9223372036854775808 ...
Store JSON object in data attribute in HTML jQuery
...se, i just found the answer to that question here: stackoverflow.com/a/42864472 "You don't need to stringify objects to store them using jQuery.data()"
– user1063287
Aug 7 '19 at 8:04
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How fast is D compared to C++?
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64
To enable all optimizations and disable all safety checks, compile your D program with the foll...
Enum type constraints in C# [duplicate]
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Eric LippertEric Lippert
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