#include main() {double x=1.0; int n; for(n=0;n

#include main() {double x=1.0; int n; for(n=0;n
#include main() {double x=1.0; int n; for(n=0;n

#include main() {double x=1.0; int n; for(n=0;n
除号应该是／而不是＼,还有那个不知你写的是％1f还是％Lf,那个应该是％1f.