题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
str=input()
d=[]
for i in str:
if i not in d:
d.append(i)
print(len(d))
d=[]
for i in str:
if i not in d:
d.append(i)
print(len(d))
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
相关推荐