题解 | #判断字母#
判断字母
https://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341
s = input() print('YES') if s.isalpha() else print('NO')
判断字母
https://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341
s = input() print('YES') if s.isalpha() else print('NO')
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