python小技巧 收集
2的三次方:2**3
7除以3的整数商:7//3
7除以3的整数商:7//3
取得numpy帮助:
>>> import numpy as np
hep
>>> help(np)
Help on package numpy:
取得numpy帮助:
>>> import numpy as np
hep
>>> help(np)
Help on package numpy: