Python 练习实例17

最后更新于:2022-03-27 01:23:23

Python 练习实例17

Python 练习实例17 Python 100例

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 或 for 语句,条件为输入的字符不为 ‘\n’。

实例(Python2.x) – 使用 while 循环

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

import string
s = raw_input(请输入一个字符串:\n)
letters = 0
space = 0
digit = 0
others = 0
i=0
while i < len(s):
c = s[i]
i += 1
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)

实例(Python3.x) – 使用 for 循环

#!/usr/bin/python3

import string
s = input(请输入一个字符串:\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:

请输入一个字符串:
123runoobc  kdf235*(dfl
char = 13,space = 2,digit = 6,others = 2

Python 练习实例17 Python 100例