我有一些來自語音識別器的字串，值是隨機的，但形式相同 (x,y...n)
MyOrder = 'orange 2 grape 3 apple 4 mango 5 banana 1'
如何以正確的順序將字串和整數添加到單獨的串列中，如 MyOrder？或沿一行中的這些字串過濾 x,y (string,int 或反之亦然)，例如：
fruit_cart = ['orange', 'grape', 'apple', 'mango', 'banana']
fruit_quantity = [2,3,4,5,1]
我嘗試使用條件 if 陳述句添加串列字串，但順序與 MyOrder 字串不同。
import numpy as np
import re
import speech_recognition as sr
fruit_cart = []
fruit_quantity = []
fruit_price = []
gross_price = []
recognizer = sr.Recognizer()
with sr.Microphone() as source2:
recognizer.adjust_for_ambient_noise(source2, duration=0.9)
audio2 = recognizer.listen(source2)
MyOrder = recognizer.recognize_google(audio2)
MyOrder = MyOrder.lower()
print("You said: " MyOrder)
if "apple" in(MyOrder) :
fruit_cart.append("apple")
fruit_price.append(5)
if "banana" in(MyOrder) :
fruit_cart.append("banana")
fruit_price.append(7)
if "grape" in (MyOrder):
fruit_cart.append("grape")
fruit_price.append(9)
if "mango" in (MyOrder):
fruit_cart.append("mango")
fruit_price.append(6)
if "orange" in (MyOrder):
fruit_cart.append("orange")
fruit_price.append(8)
q = [int(x) for x in re.findall('(\d )', MyOrder)]
fruit_quantity.extend(q)
total_fruit = len(fruit_cart)
print(fruit_cart)
print(fruit_quantity)
print(fruit_price)
print(total_fruit)
gross_price = np.multiply(fruit_quantity,fruit_price)
total_price = 0
for b in range(total_fruit):
print("%i \t %s\t %s \t\t%i\t\t %i" % (b 1, fruit_cart[b], fruit_price[b], fruit_quantity[b], gross_price[b]))
total_price = total_price gross_price[b]
tax = total_price * 10/100
final_price = total_price tax
順便說一下，我是 python 新手
uj5u.com熱心網友回復：
您的代碼中的問題是它的作業順序與 ifs 陳述句相同。因此，如果蘋果出現在 中，它們總是排在第一位MyOrder，然后是香蕉、葡萄等。您希望按照出現的順序填寫您的串列MyOrder。
我會將字串轉換為串列并迭代串列而不是使用 if 陳述句。對于價格，我會用每種水果的價格來定義一個字典。這是我的做法：
prices = {"apple": 5, "banana": 7, "grape": 9, "mango": 6, "orange": 8}
with sr.Microphone() as source2:
recognizer.adjust_for_ambient_noise(source2, duration=0.9)
audio2 = recognizer.listen(source2)
MyOrder = recognizer.recognize_google(audio2)
MyOrder = MyOrder.lower()
print("You said: ", MyOrder)
word_list = MyOrder.split(" ")
fruit_cart = word_list[::2]
fruit_quantity = [int(n) for n in word_list[1::2]]
fruit_price = [prices[fruit] for fruit in fruit_cart]
total_fruit = len(fruit_cart)
gross_price = np.multiply(fruit_quantity,fruit_price)
total_price = 0
for b in range(total_fruit):
print("%i \t %s\t Rp %s \t\t%i\t\t Rp %i" % (b 1, fruit_cart[b], fruit_price[b], fruit_quantity[b], gross_price[b]))
total_price = total_price gross_price[b]
tax = total_price * 10/100
final_price = total_price tax
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