清华大学谭浩强版C语言程序设计全部例题

第十三章.#include#includevoidmain(void){FILE*fp;charch,filename[10];scanf("%s",filename);if((fp=fopen(filename,"w"))==NULL){printf("cannotopenfile\n");exit(0);}ch=getchar();ch=getchar();while(ch!='#