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29、f-Strings

f-string是格式化字符串的新语法。
与其他格式化方式相比,它们不仅更易读,更简洁,不易出错,而且速度更快!

  1. num = 1
  2. language = 'Python'
  3. s = f'{language} is the number {num} in programming!'
  4. print(s)
  5. # Python is the number 1 in programming!
  6. num = 1
  7. language = 'Python'
  8. s = f'{language} is the number {num*8} in programming!'
  9. print(s)
  10. # Python is the number 8 in programming!

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