maino double e=1.0, x=1.0,y,detax; 程序 printf((“ n please enter a number:”); scant(%r”,& detax); while(y>=detax) -X 出; 1/x -e printf((“%12.l0lr”,e)main() {double e=1.0,x=1.0,y,detax; int i; printf(“\n please enter a number:”); scanf(“%lf”,&detax); y=1/x; while(y>=detax) {x=x*i; y=1/x; e=e+y; ++i; } printf(“%12.10lf”,e); } 程 序