Tips & Tricks

Vim:

:n,$s/hello/sky/g 替换第n行开始到最后一行的所有hello为sky

 

 

Swig:

$ swig -python hello.i

Unable to find "swig.swg"

Unable to find "pyth.swg"

解决办法：

加路径

$ swig -I${SWIG_PATH}/share/4.0.0 -I${SWIG_PATH}/share/python -python hello.i

 

python:

>>> bytes([97])

b'a'

>>> ord(b'a')

97

 

>>> a = [1, 2, 4, 255]

>>> b = bytes(a)

>>> c = list(b)

>>> n = 0xffffffff

>>> bytes(n)  #可能造成死机，狂耗内存