e值该如何计算呢? 若关于ex幂级数展开 ex=1+x+x2/2!+x3/3!+•••+xn/n! 取x=1,有e=1+1/2+1/6+••• 接下来就是十分简单的编程 这里选用了python语言(当然也可以选用其他编程语言)进行计算 import time e=1 #e bn=1 since = time.time() for i in range(100000): bn=bn*(i+1) #n! e=e+1/bn spend = time.time()-since print(e) prin
#CalStatisticsV1.py def getNum(): #获取用户不定长度的输入 nums=[] test=input("请输入要存储的数据(回车退出):") while test != "": nums.append(eval(test)) test=input("请继续输入其他数据(结束回车退出):") return nums def mean(means_n): #求平均值 s=0 mean_result=0 for i in
This topic describes how to implement a business class, so that one of its properties is calculated based on a property(ies) of the objects contained in the child object collection. 本主题介绍如何实现 Business 类,以便基于子对象集合中包含的对象的属性计算其属性之一. Tip 提示 A complete sa