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  1. msg = "hello 123 WORLD"
  2. #统计长度和小写字母个数
  3. length =  len (msg)
  4. lower_count = sum(1 for ch in msg if ch.islower())
  5. print("长度：",  length  )
  6. print("小写字母个数：", lower_count   )
  7. #替换并转小写
  8. new_msg = msg. replace  ("WORLD", "Python")
  9. result = new_msg. lower()
  10. print("结果：", result)
Success #stdin #stdout 0.07s 14152KB
comments (?)
stdin 
Standard input is empty
stdout 
长度： 15
小写字母个数： 5
结果： hello 123 python
https://ideone.com/tyywPC
language:
Python 3 (python  3.12)
created:
13 hours ago
visibility:
public

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