c# ToString

1:A.ToString("0.#")

  A: double type, # : 1: limit digits 2: round up 3: remove zero

    Example: A = 60.8 A.ToString("0.#") = 60.8

       A = 60.008    A.ToString("0.#") = 60

         A = 60.078  A.ToString("0.#") = 60.1

       

      

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