Python 100例-17


实例17

题目: 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。

程序分析: 利用while语句,条件为输入的字符不为'\n'。

程序源代码:

#!/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,others)

以上实例输出结果为:

input a string:
youj
char = 6,space = 0,digit = 0,others = 0