python123答案

python123答案

1已知标准差的计算公式，计算并输出列表中存放的一组数据的标准差。

X=[1, 9, 12, 3, 7, 10, 89, 52, 19, 33]
a=0
import math
m=sum(X)/len(X)
for i in X:a=a+(i-m)**2
b=math.sqrt(a/len(X))
print(b)

2最大值

x=input()
x=x.split(",")
s=[int(i) for i in x]
print(max(s))

3点餐

listA = ['水煮干丝','平桥豆腐','白灼虾','香菇青菜','西红柿鸡蛋汤']
listA.append ("红烧肉")
ve("水煮干丝")
print(listA)

4乘车问.‪‬‪‬‪‬‪‬‪‬‮‬‪‬‫‬‪‬‪‬‪‬‪‬‪‬‮‬‪‬‮‬‪‬‪‬‪‬‪‬‪‬‮‬‪‬‮‬‪‬‪‬‪‬‪‬‪‬‮‬‭‬‫‬‪‬‪‬‪‬‪‬‪‬‮‬‪‬‮‬‪‬‪‬‪‬‪‬‪‬‮‬‫‬‭‬‪‬‪‬‪‬‪‬‪‬‮‬‭‬‪‬

s= ["木华园站", "河工大体育中心站", "金声园站", "河工大教师公寓站", "学院楼站", "兴工广场站", "安津医院站", "安津医院站","北辰工业园站","刘园地铁站","瑞景新苑地铁站","佳宁里站","佳园里地铁站","佳园南里站","绥中南楼站","本溪路站","丁字沽十三段站","丁字沽八段站","丁字沽四段站","丁字沽站","丁字沽公交站"]
x=eval(input())
m=x[0]
n=x[1]
a=s.index(m)
b=s.index(n)
if a <= b:print(b - a)
else:print("请到对面车站乘车")

5调用函数计算列表元素的平均值

def mean(numlist):s = 0.0for num in numlist:s = s + numreturn s/len(numlist)
#请输入一个列表：
ls = eval(input())
print("average:",mean(ls))