Question

По какой из масок каталога отображена указанная группа файловГруппа файлов1)cabinda.xls2) cubic.xlsx3) irbic.xls4) tobias.xlsМаски1) ??bi*.xls 2) ??bi*.xls*3) **bi*.xls*4) ??bi*.x*Пожалуйста поподробнее. Заранее спасибо

Answer 1

3), т.к. xls есть и есть xlsx (* - бесконечн. любых знаков, ? - 1 ЛЮБОЙ знак), и перед bi в каждом слове разное кол-во символов, значит *, чтобы И то И это - вариант 3.

Answer 2

Mask and File Grouping Explanation

The specified file group consists of the following files: 1) cabinda.xls 2) cubic.xlsx 3) irbic.xls 4) tobias.xls

The masks provided are: 1) ??bi*.xls 2) ??bi*.xls* 3) **bi*.xls* 4) ??bi*.x*

Let's analyze which mask from the catalog displays the given file group.

Matching Process:

1. ??bi*.xls: This mask matches files with any two characters at the beginning, followed by "bi" and any number of characters, and ending with ".xls". This mask matches the files "cabinda.xls" and "irbic.xls" from the given file group. 2. ??bi*.xls*: This mask matches files with any two characters at the beginning, followed by "bi" and any number of characters, and ending with ".xls" or any extension. This mask matches the files "cabinda.xls" and "irbic.xls" from the given file group. 3. bi*.xls*: This mask matches files starting with "bi" and ending with ".xls" or any extension. None of the files in the given file group match this mask. 4. ??bi*.x*: This mask matches files with any two characters at the beginning, followed by "bi" and any number of characters, and ending with ".x" or any extension. This mask matches the file "cubic.xlsx" from the given file group.

Conclusion:

The mask ??bi*.x* from the catalog displays the specified file group, as it matches the file "cubic.xlsx" from the given file group.

I hope this helps! If you have further questions or need additional assistance, feel free to ask.