题解 | #字符类型计数#

# 输出结果冒号后面有一个空格！！
get_str = input()
alpha = 0
digit = 0
space = 0
other = 0
for i in get_str:
    if i == ' ':
        space += 1
    elif i in ['0','1','2','3','4','5','6','7','8','9']:
        digit += 1
    elif i.isalpha():
        alpha += 1
    else:
        other += 1
print(f'alpha: {alpha}')
print(f'digit: {digit}')
print(f'space: {space}')
print(f'other: {other}')