Python 判断字符属于数字、字母、空格

输入一行字符，分别统计出其中英文字母、空格、数字和其它字符的个数。

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python 2 代码

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import string
s = raw_input('input a string:\n')
letters = 0
space = 0
digit = 0
others = 0
for c in s:
    if c.isalpha():
        letters += 1
    elif c.isspace():
        space += 1
    elif c.isdigit():
        digit += 1
    else:
        others += 1
print 'char = %d,space = %d,digit = %d,others = %d' % (letters,space,digit,othe

 

Python 判断字符属于数字、字母、空格的方法：

字符 c.isalpha()

空格 c.isspace()

数字 c.isdigit()

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下面为Python3 代码。

s = input('input a string:\n')
letters = 0
space = 0
digit = 0
others = 0
for c in s:
    if c.isalpha():
        letters += 1
    elif c.isspace():
        space += 1
    elif c.isdigit():
        digit += 1
    else:
        others += 1
print('char = %d,space = %d,digit = %d,others = %d' % (letters,space,digit,others))