题解 | 统计字符
s=input() a=0 b=0 c=0 d=0 for i in s: if i.isalpha(): a+=1 elif i.isdigit(): c+=1 elif i.isspace(): b+=1 else: d+=1 print(a,b,c,d,sep="\n")
s=input() a=0 b=0 c=0 d=0 for i in s: if i.isalpha(): a+=1 elif i.isdigit(): c+=1 elif i.isspace(): b+=1 else: d+=1 print(a,b,c,d,sep="\n")
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