16 复习一下format格式化输出

mystring = input('输入一带有字母数字特殊符号的字符串:')
alpha = 0
space = 0
number = 0
other = 0
for i in mystring:
    if i >= 'a' and i <= 'z' or i >= 'A' and i <= 'Z':
        alpha += 1
    elif i >= '0' and i <= '9':
        number += 1
    elif i.isspace():
        space += 1
    else:
        other += 1
print('alpha:{},number:{},space:{},other:{}'.format(alpha,number,space,other))