If the pathname is a directory, then you can continue to expand each part of the pathname.
如果路径名是一个目录，您可以继续展开该路径名的每个部分。
2
An absolute pathname begins with the root directory and follows the tree branch by branch until the path to the desired directory or file is completed.
绝对路径名从根目录开始，通过一个又一个的分支，一直到你要去的目录或者文件为止。
3
The 32- and 64-bit versions of TDP/Informix are normally installed in the same base directory; however, the 64-bit version appends the 64-identifier to the end of the pathname, such as is shown below