Question

我希望代码能够计算"，!，?，,，但是当我运行代码时，它会对所有输入的字符进行计数。谁能告诉我哪里搞砸了？

def how_eligible():
    total = 0
    x = ('"','!','?',',')
    y = raw_input('Write your essay here.')
    for y in x:
        if y in x:
            total = total + 1
    print total

Answer 1

我会将你的双循环更改为

for c in y:
    if c in x:
        total = total + 1

Answer 2

想知道..一个Pythonic 1衬里解决方案

x = ('"','!','?',',')
y = input('Write your essay here.')
len([i for i in y if i in x])

Answer 3

您还可以使用收藏模块中的计数器：

from collections import Counter

in_s = 'abc?c?"!'
need = ['"', '!', '?']

char_count = Counter(in_s)

for c in need:
    print(c, char_count[c])

试图计算python中的某些字符

3 个答案: