2-4

2#include<stdio.h> int main(void) { double x,y; printf("Enter x(x>=0)：\n" scanf("%lf,&x"); if(x<=15){ y=4*x/3; } else{ y=2.5*x-10.5; } printf("y=f(%f)=%.2f\n",x,y); return 0; }

 

转载于:https://www.cnblogs.com/liruijia199531/p/3356673.html