When we want to creat a factoral ,the for loops can do yo...[作者空间]
#for loops sum=0 for i in range(10) : sum=sum+i print...[作者空间]
>>> a=[1,2,3] >>> b=a >>> c=a[:] >>> a [1, 2, 3] >>> b [1...[作者空间]
Python is the most popular open-source software in the wo...[作者空间]
