Week3 Exceptions
Fuel Gauge
题目描述:
输入分数字符串,判断并输出相应的百分数;特例不足1%输出E,超出99%输出F
思路:
1,从字符串中取出x,y;
2,按题中要求计算输出;
题解:
while True:
try:
## 取出x,y
x, z, y= input("Fraction: ")
x, y = int(x), int (y)
##防止出错
if y == 0:
raise ZeroDivisionError
if x > y:
raise ValueError
break
except(ValueError, ZeroDivisionError):
pass
## 模拟题
if 0 < x/y < 0.99:
print(f"{round(x/y*100)}%")
elif x/y >= 0.99:
print("F")
else:
print("E")
Felipe’s Taqueria
题目描述:
根据用户输入的信息,匹配菜单价格,最终算出最终价格。
题解:
## 菜单信息
menu = {
"Baja Taco": 4.00,
"Burrito": 7.50,
"Bowl": 8.50,
"Nachos": 11.00,
"Quesadilla": 8.50,
"Super Burrito": 8.50,
"Super Quesadilla": 9.50,
"Taco": 3.00,
"Tortilla Salad": 8.00,
}
##total:结果
total = 0
## 计算输出
while True:
try:
## title(): 首字母大写其余小写
item = input("Item: ").title()
if item in menu:
total += menu[item]
print(f"Total: ${total:.2f}")
except EOFError:
print()
break
Grocery List
题目描述:
记录用户输入商品,最终输出已输入的商品以及商品数量;
题解:
## 存储商品信息
list = {}
while True:
## 输入处理
try:
## upper():字符串大写
item = input("").upper()
except EOFError:
print()
break
## 记录商品
if item in list:
list[item] += 1
else:
list[item] = 1
## 输出结果
for item, cnt in sorted(list.items()):
print(f"{cnt} {item}")
Outdated
题目描述:
用户输入9/8/1636,September 8, 1636形式,系统转换输出1636-09-08;若用户输出其他形式抛异常。
题解:
## 月份记录
months = [
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December"
]
##思路:分情况讨论
while True:
date = input("Date: ")
month,day,year = "", "", ""
try:
## 9/8/1636
if len(date.split("/")) == 3:
date = date.split("/")
month, day, year = map(int, date)
## September 8, 1636
else:
date = date.split(",")
if len(date) == 2:
month, day = date[0].split()
month = months.index(month)+1
day, year = int(day), int(date[1])
##输出
if 1<=int(month)<=12 and 1<=int(day)<=31:
print(f"{year:04}-{month:02}-{day:02}")
break
except ValueError:
pass
Week4 Libraries
Emojize
题目描述:
练习python调用库操作;
题解:
from emoji import emojize
print("Output:", emojize(input("Input: ")))
Frank, Ian and Glen’s Letters
题目描述:
The documentation for pyfiglet isn’t very clear, but you can use the module as follows:
from pyfiglet import Figlet
figlet = Figlet()
You can then get a list
of available fonts with code like this:
figlet.getFonts()
You can set the font with code like this, wherein f
is the font’s name as a str
:
figlet.setFont(font=f)
And you can output text in that font with code like this, wherein s
is that text as a str
:
print(figlet.renderText(s))
题解:
from pyfiglet import Figlet
import random
import sys
fonts = Figlet().getFonts()
# Zero if the user would like to output text in a random font.
# Two if the user would like to output text in a specific font, in which case the first of the two should be -f or --font, and the second of the two should be the name of the font.
if len(sys.argv) == 1:
font = random.choice(fonts)
elif len(sys.argv) == 3:
if sys.