用C/C++写的词法分析器

voidinit_scaner(){fp=fopen(IN_FILE,"r");if(fp==NULL){fprintf(stderr,"打开文件%s失败\n",IN_FILE);exit(-1);}fp_out=fopen(OUT_FILE,"w");if(fp_out==NULL){fprintf(stderr,"打开文件%s失败\n",IN_FILE);exit(-1);}}