//求解立方根，最简单粗暴的解法 include <stdio.h> int main(){ double num; double x=0,y,a; scanf("%lf",&num); if(num>0) a=0.001; else a=-0.001; for(x=0;x<=num||x>=num;x+=a)//不停的试数 { y=num-xxx; if(y<0.01&&y>-0.01) { ...