1、For a list of valid wildcard characters, see the section wildcard character reference.
2、The final wildcard character means all topics that start with Midi/Short/ are subscribed to.
3、For example, you can use a wildcard character called a joker — a dot (.) that matches any character but one at the end of a line.
4、By using the underscore (remember the wildcard character in Scala?), you effectively tell the Scala compiler that all of the members inside BigInteger should be brought into scope.
5、If you are filtering on a text field, for the equals and not equal to operators, you can use wildcard characters. Use the percent character (%) to represent a string of mutliple characters, or the underscore character (_) to represent any single character.
6、Use wildcard characters in search conditions
7、The archive file path contains unrecognized wildcard characters.
8、The log file path contains unrecognized wildcard characters.
9、File name contains invalid characters (wildcard characters are not supported);;File name '{0}' contains invalid characters (wildcard characters are not supported)
10、It also recognizes two wildcard characters in the binding key: # matches zero or more words and * matches one word. Example: the binding key *.stock.
11、A subscriber (but not a publisher) can specify a topic name that contains wildcard characters, which creates a single subscription to multiple topics, such as a branch in a topic hierarchy.
12、For example, if a user were to type in a string that is used to search some index, it may be important to filter the string for improper wildcard characters that might cause unbounded searches.
13、Both of these can be used to set explicit registrations, or you can use asterisks in the names as wildcard characters to affect multiple connections in one modify command.
