第五章 算珠如弦

    if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"if（（"standalone"downavigator）&&downavigatorstandalone）{docuntwriteln（"