How are wildcards defined and what are they?

.Represents all files with *** as the extension.

*** ?Just for one arbitrary character can be, etc.

There are generally two kinds of wildcards, one is * and the other is?

Represents any number of possible characters, with ? Represents one possible character. As.

doc represents all files of type Word document.

Represents all characters, ?Represents one character.

* Can be used in place of zero, single or multiple characters, while ? You can use only one character in lieu of one. * indicates that the number of matches is not limited, while ? is limited in the number of matching characters.

Characteristics of wildcards, you can use it instead of one or more real characters, and often use wildcards instead of one or more real characters when you don't know the real characters or are too lazy to enter the full name.

Wildcards are an advanced feature of PPC ads, and when we use them in ad creative, people with different search terms will see different ad creatives (even though we've only created one ad), which will greatly improve the relevance of our ads.

and practicality, thereby increasing the click-through rate of the advertisement, but also greatly improving our work efficiency.

*"Represents any number of characters (including 0)," represents any character.

Wildcard " " and "? The difference is that " can be used instead of zero, single, or multiple characters, while "? You can use only one character in lieu of one.

* indicates that the number of matches is not limited, while ? is limited in the number of matching characters.

This trick is mainly used in English searches, such as typing "computer*" to find words such as "computer, computers, computerised, computerized", etc., and typing "comp?".ter", you can only find words such as "computer, compater, competer".

Wildcards mainly include an asterisk ( ) and a question mark (?). ) is used to obfuscate the search for files. When looking for a folder, you can use it in place of one or more real characters; When you don't know the real characters or don't bother to type in the full name, wildcards are often used instead of one or more real characters.

How to use wildcards - fuzzy conditional summation:

1. For example, requirement: find the total number of "T-shirts" in the product.

You need to sum the total number of T-shirts in the item bar, enter the formula: sumif(A2:A18,"*T-shirt, D2:

d18) Since we can't be sure whether there is any other data before and after the "t-shirt", the condition is t-shirt, then we can find all the quantities that contain "t-shirt".

2. For example, the requirement is to find out that the last word in the product is "skirt", and the cell is the total number of 5 characters.

Enter the formula in the project bar: sumif(a2:a18,"?

skirt", d2:d18), because it must be 5 characters and the last one is "skirt", so the condition is entered "?? Skirt "one"?

Represents any 1 character.

The wildcards mainly include:

You can use an asterisk instead of zero, single, or multiple characters. If you are looking for a file that starts with AEW, but you can't remember the rest of the file name, you can enter AEW to find files of all file types that start with AEW, such as etc.