def Sum(n): #定义一个函数(注意：格式对齐，否则会出错)
a=list(range(n)) b=list(range(0,50000*n,5)) c=[] for i in range(len(a)): c.append(a[i]**2+b[i]**3) return cprint(Sum(20))import numpy as pydef pySum(n): a=py.array(range(n)) b=py.array(range(0,500000*n,n)) c=[] for i in range(len(a)): c.append(a[i]**2+b[i]**3) return cprint(pySum(20))import datetimedef new4(): now1=datetime.datetime.now() Sum(30000) now2=datetime.datetime.now() pySum(30000) now3=datetime.datetime.now() print("sum执行时间(30W数据)：" , now2-now1,"\npysum数组执行时间(30W数据)：" , now3-now2)new4()
原文：https://www.cnblogs.com/SpaldingWen/p/9737971.html