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  1. #include <stdio.h>
  2. int main() {
  3.    float x, y;
  4.    printf("请输入x的值: ");
  5.    scanf("%f", &x);
  6.    if (x > -5 && x < 0) {
  7.         y = x;
  8.     } else if (x == 0) {
  9.        y = x - 1;
  10.  } else if (x > 0 && x < 10) {
  11.        y = x + 1;
  12.    }
  13.    printf("y的值为: %f\n", y);
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5312KB
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Standard input is empty
stdout
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请输入x的值: y的值为: 1.000000
https://ideone.com/JVsH83
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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