python 从键盘输入一行字符,分别统计其中英文字母,空格,数字和其它字符的个数

下面是Python代码实现：

s = input("请输入一行字符：")
letters = 0
space = 0
digit = 0
others = 0
for c in s:
    if c.isalpha():
        letters += 1
    elif c.isspace():
        space += 1
    elif c.isdigit():
        digit += 1
    else:
        others += 1
print("字母个数：", letters)
print("空格个数：", space)
print("数字个数：", digit)
print("其他字符个数：", others)