Day3、Python

#Topic        :    输入一行字符，分别统计出其中英文字母、
#                  空格和其他字符的个数
#File Name    :    count_string.py
#Author       :    Jack Cui
#Created      :    1 April 2016
str = input('please input a string:\n')
letter = 0
space = 0
digit = 0
other = 0
for i in str:
    if i.isalpha():
        letter += 1
    elif i.isspace():
        space += 1
    elif i.isdigit():
        digit += 1
    else:
        other += 1
print('letter = %d,space = %d,digit = %d,other = %d' % (letter,space,digit,other))