程序代码：

printf("flow0=%7.2f,head0=%7.2f\n",flow0,head0);
/*计算常数*/
ss=3.65*n0*sqrt(flow0)/(pow(head0,0.75));              /*计算比转速*/
mn=(60*1000*G*n1*flow0*head0)/(2*PI*n0*ef);                /*计算转矩*/
printf("ss=%7.2f,mn=%7.2f\n",ss,mn);
c1=es-el;
printf("c1=%7.2f\n",c1);