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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
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How do I check if a string is valid JSON in Python?
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Neil
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answered Apr 1 '11 at 2:25
John FlatnessJohn F...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...smcFanControl这款软件来手动控制风扇转速（平时建议设为3000RPM）。
查看温度
安装iStat Pro，然后调出Dashboard，就能看到CPU、硬盘等的温度，此外还能显示内存、CPU等运行状态。
最大化窗口
按住shift键再点+号，只对部分程序有...
awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
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Batch Renaming of Files in a Directory
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Python nonlocal statement
What does the Python nonlocal statement do (in Python 3.0 and later)?
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Tool to read and display Java .class versions
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staffanstaffan
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How to crop an image in OpenCV using Python
...y simple. Use numpy slicing.
import cv2
img = cv2.imread("lenna.png")
crop_img = img[y:y+h, x:x+w]
cv2.imshow("cropped", crop_img)
cv2.waitKey(0)
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Could not find an implementation of the query pattern
...ng queries becomes easy.
Please check this code:
var result = (from s in _ctx.ScannedDatas.AsQueryable()
where s.Data == scanData
select s.Id).FirstOrDefault();
return "Match Found";
Make sure you include System.Linq.
Th...
How to create an infinite loop in Windows batch file?
...it
rem ** can be stopped with a syntax error
call :stop
)
:stop
call :__stop 2>nul
:__stop
() creates a syntax error, quits the batch
This could be useful if you need a really infinite loop, as it is much faster than a goto :loop version because a for-loop is cached completely once at sta...