如下所示：

import os
var = [1, 2, 3]
data = [x*2 for x in var]
print (data)
 
two = [[i, i**2] for i in var]
print (two)
 
three = [[i, i+i, i**3] for i in var]
print (three)
 
fruit = [' banana', ' loganberry ', 'passion fruit ']
strip_fruit = [one.strip() for one in fruit]
print (strip_fruit)