#1042. 字符窜初学2（0.5）
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ID: 1042
Type: Default
1000ms
128MiB
Tried: 43
Accepted: 32
Difficulty: 1
Uploaded By:
字符窜初学2（0.5）
说明
任意输入一个字符窜（小于100位），输出字符窜里有多少个字符‘a’。
appletoeat
2
来源
字符串Related
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