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  1. # 定义字符串变量
  2. info= "label_data"
  3.  
  4. # 输出原始字符串
  5. print("原始字符串：")
  6. print(  info      )
  7. # 转小写并输出
  8. lower_info = info.lower()
  9. print("小写：",  lower_info        )
  10. # 转大写并输出
  11. upper_info = info.upper()
  12. print("大写：",  upper_info      )
  13. # 输出长度
  14. print("长度：",  len    (info))
  15. # 逆序并输出
  16. reverse_info = info  [::-1]       
  17. print("逆序：",   reverse_info        )
Success #stdin #stdout 0.07s 14152KB
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Standard input is empty
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原始字符串：
label_data
小写： label_data
大写： LABEL_DATA
长度： 10
逆序： atad_lebal
https://ideone.com/ZC9wqp
language:
Python 3 (python  3.12)
created:
5 days ago
visibility:
public

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