Question

你好，我是编程的新手，我需要一些帮助来改进此代码。我需要计算文件中每个字母的出现次数，并忽略字母的大小写； 'A'和'a'都计为'A'。输出需要看起来像这样：

>A 20
>B 3
>C 5

这是我到目前为止所拥有的：

file = open("LETTERCOUNT.txt", "w")
file.write("My name is Alexis Bernal, yet some people call me Lexi. I am currently eighteen years old. I really enjoy snowboarding, working out, hanging out with friends and trying new food. My favorite color is burgundy and my favorite animal is a giraffe. ")
import string
text = open('LETTERCOUNT.txt').read()
text = filter(lambda x: x in string.letters, text.lower())
for letter, repetitions in file:
    print (letter, repetitions)

Answer 1

使用Counter

from collections import Counter

text = open('LETTERCOUNT.txt').read()
your_counts = Counter(text.upper())

your_counts将是一个Counter对象，您可以调用dict(your_counts)将其变成字典：

     'A': 2865,
     'B': 2751,
     'C': 2871,
     'D': 3013,
     'E': 3371,
     'F': 2737,
     'G': 2667,
     'H': 2835,
     'I': 2896,
     'J': 2624,
     'K': 2511,
     'L': 2794,
     'M': 2765,
     'N': 3091,
     'O': 3003,
     'P': 2951,
     'Q': 2751,
     'R': 2897,
     'S': 2811,
     'T': 3289,
     'U': 2953,
     'V': 2924,
     'W': 2634,
     'X': 2733,
     'Y': 2707,
     'Z': 2851,

计算文件中的字母

1 个答案: