Python入门:求1-2+3-4+5...99的所有数的和

2024-03-02 20:24:22

 num =1

 sum =0

 while num <=99:

      if num % 2 ==1:

          sum = sum + num

      num =num +1

 print(sum)

2.求1-2+3-4+5...99的所有数的和

 num =1

 sum =0

 while num <=99:

      if num % 2 ==1:

          sum = sum + num

      else:

          sum =sum -num

      num =num +1

 print(sum)
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