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  1. grade=10
  2. if 80<=grade<=100:
  3. print('成绩优秀')
  4. elif 60<=grade<=80:
  5. print('成绩中等')
  6. else:
  7. print('成绩差')
  8. if 20<=grade<60:
  9. print('再努力一把,还有救!')
  10. else:
  11. print('你要比以前更努力才行,你可以的!')
Success #stdin #stdout 0.01s 7076KB
stdin
Standard input is empty
stdout
成绩差
你要比以前更努力才行,你可以的!