如何在Python中计算字符串的数字，字母，空格？ [英] How to count digits, letters, spaces for a string in Python?

问题描述

我正在尝试创建一个函数来检测一个字符串有多少个数字，字母，空格和其他字符。

I am trying to make a function to detect how many digits, letter, spaces, and others for a string.

这是我到目前为止的内容：

Here's what I have so far:

def count(x):
    length = len(x)
    digit = 0
    letters = 0
    space = 0
    other = 0
    for i in x:
        if x[i].isalpha():
            letters += 1
        elif x[i].isnumeric():
            digit += 1
        elif x[i].isspace():
            space += 1
        else:
            other += 1
    return number,word,space,other

但是它不起作用：

>>> count(asdfkasdflasdfl222)
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    count(asdfkasdflasdfl222)
NameError: name 'asdfkasdflasdfl222' is not defined

我的代码有什么问题，如何将其改进为更简单，更精确的解决方案？

What's wrong with my code and how can I improve it to a more simple and precise solution?

推荐答案

这是另一个选择：

s = 'some string'

numbers = sum(c.isdigit() for c in s)
letters = sum(c.isalpha() for c in s)
spaces  = sum(c.isspace() for c in s)
others  = len(s) - numbers - words - spaces

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