python之菜鸟100例--017

'''
可用isalpha(),isplace(),isdigit()来分别判断是否是字母，空格，数字
'''
#用字典这种数据结构统计
dict = {'alpha':0,'place':0,'digit':0,'other':0}
s = input("请任意输入一串：")
for ss in s:
if (ss>='a' and ss<='z') or (ss>='A' and ss<='Z'):
dict['alpha'] +=1
elif ss == " ":
dict['place'] +=1
elif ss in '0123456789':
dict['digit'] +=1
else:
dict['other'] +=1
print("统计结果为:",dict)