-----------------------------------------------------------------------------------------#include <stdio.h>int main (){ double x,y; int c; printf("输入x的值:"); scanf("%lf",&x); c=x/10; switch (c) { case 4: case 3: case 2:y=((-0.5)*x+3);break; case 1:y=10;break; case 0:y=x;break; default:y=0; } printf("%f\n",y);
}
这个哪错了