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