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  1. #include  <stdio.h>
  2. #include  <stdlib.h>
  3. #include  <math.h>
  4. #define   EPS 1e-6
  5. int main(void)
  6. {
  7.     float  a, b, c, disc, p, q,a1;
  8.     scanf("%f,%f,%f",&a,&b,&c);
  9.     a1 = fabs(a);
  10.     printf("%f的绝对值是：%f",a,a1);
  11.     return 0;
  12. }
Success #stdin #stdout 0s 5324KB
comments (?)
stdin 
-2.1,4,7,8
stdout 
-2.100000的绝对值是：2.100000
https://ideone.com/1VaHJO
language:
C (gcc 8.3)
created:
7 days ago
visibility:
public

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