题解 | #统计字符#
统计字符
https://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
stri = input()
n1,n2,n3,n4 = 0,0,0,0
for i in stri: # 对每个字符进行判断计数
if i.isalpha():
n1 += 1
elif i == ' ':
n2 += 1
elif i.isdigit():
n3 += 1
else:
n4 += 1
print(n1)
print(n2)
print(n3)
print(n4)
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