fig04_09.cpp

经典书籍源代码啊。。。第三版。。。数据结构与算法分析——C++描述(第3版).

int FileSystem::size( ) const
{
    int totalSize = sizeOfThisFile( );

    if( isDirectory( ) )
        for each file c in this directory (for each child)
            totalSize += c.size( );

     return totalSize;
}