题解 | #统计字符#
统计字符
http://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
使用正则表达式来解决匹配问题
import re
while 1:
try:
str1= input()
n1 = re.findall(r'[a-zA-Z]',str1)
n2 = re.findall(r' ',str1)
n3 = re.findall(r'[0-9]',str1)
n4 = re.findall(r'[^a-zA-Z0-9]',str1)
print(len(n1))
print(len(n2))
print(len(n3))
print(len(n4))
except:
break
