通配符

The use of wildcards is something that many computer users are familiar with, whether they realize it or not. Wildcards are symbols or characters that have special meaning when it comes to looking for or selecting specific files or data. For example, the asterisk (*) is a wildcard that can substitute for any character or set of characters. This can be an incredible time-saver when you're trying to find a file quickly, because you only need to use a partial name or even just part of it.
Wildcards are especially useful when dealing with very large text files. If you need to find something specific within the file, you can use wildcards to reduce the amount of time you spend sifting through it. By typing a partial name, you can limit the search to exactly what you're looking for. This can save hours of tedious searching.
Wildcards can also be used to select more than one file at once. For example, if you wanted to select all the files that begin with the letter "A", you could type "A*" as your wildcard. This will give you all the files that begin with the letter A.
Wildcards can make searching and selection of files much faster and simpler. Though the use of wildcards can be intimidating to some, with a bit of practice you can quickly become familiar with them and learn how to use them to your advantage.