#!/usr/bin/python
#coding=utf-8
#好好学习，天天向上
age=12
if age<4:
price=0
elif age<18:
price=40
elif age>66:
price=40
else:
price=20
print(f"your admmssion cost is ${price}.")
判断多条件时可用if-elif-else结构语句
原文：https://www.cnblogs.com/tigergaonotes/p/14226919.html