下面的代码解析了一个文本文件并索引了单词和行:boolDatabase::addFromFileToListAndIndex(stringpath,BSTIndex*&index,list&myList){boolresult=false;ifstreamtxtFile;txtFile.open(path,ifstream::in);charline[200];Line*ln;//ifpathisvalidANDisnotalreadyinthelistthenadditif(txtFile.is_open()&&(find(textFilePaths.begin(),textFile