[编程入门]字符串分类统计-题解(Python代码)

解题思路:

注意事项:

参考代码:s=input()
A1=0
A2=0
A3=0
A4=0
for i in s:
    if (i>='A' and i<='Z')or(i>='a' and i<='z'):
        A1=A1+1
    elif (i>='1' and i<='9'):
        A2=A2+1
    elif  (i==' '):
        A3=A3+1
    else:
        A4=A4+1
print(A1,A2,A3,A4)