Excel VBA quick start (XII. Common usage of like comparison)

grammar ： character string Like Base string , Written in Like On the right , Wildcard pairs can be used Like Make a fuzzy comparison with the content on the left

1. Ignore a character comparison

Using wildcards ?, use ? The placeholder can be any character , But it can't be empty

Public Sub main()
  Debug.Print " character string " Like "? Fu string " ' result ：True
  Debug.Print " character string " Like " character ?" ' result ：True
  Debug.Print " character string " Like " word ? strand "  ' result ：True
  Debug.Print " character string " Like "? character string " ' result ：False
End Sub

2. Ignore multiple character comparisons

Using wildcards *, use * The placeholder can be any number of any character

Public Sub main()
  Debug.Print " character string " Like "* strand " ' result ：True
  Debug.Print " character string " Like " word *" ' result ：True
  Debug.Print " character string " Like " word * strand "  ' result ：True
  Debug.Print " character string " Like "* character string " ' result ：True
End Sub

3. Cancel the meaning of wildcard

Sometimes in the benchmark string on the right , Want wildcards to have no special meaning , Just like an ordinary character , Then you can use [] To cancel the wildcard
meaning , Make it an ordinary character

Public Sub main()
 ' Like  On the right side of the  [?]  No wildcard function , It's just an ordinary character  “?"
  Debug.Print " word ? strand " Like " word [?] strand " ' result ：True
  Debug.Print " character string " Like " word [?] strand " ' result ：False
End Sub

4. Compare digit numbers

Using wildcards # You can judge the number of digits , One # Is a , Two # Just two , And so on

Public Sub main()
  Debug.Print 100 Like "###" ' result ：True
  Debug.Print 1000 Like "###" ' result ：False
End Sub

5. Interval comparison

Interval comparison is best based on regular expressions , Because syntax is very similar to regular , Write the interval value in [] Inside

Public Sub main()
  Debug.Print "A" Like "[a-zA-Z]" ' A character , And the characters are in lowercase  a-z  And capital  A-Z  Between "
  Debug.Print "M" Like "[A-GM-Z]" ' A character , And the characters are in uppercase  A-G  And capital  M-Z  Between "
  Debug.Print "Y" Like "[!A-G]" ' A character , And the characters are not capitalized  A-G  Between "
  Debug.Print "C" Like "[ABCD]" ' A character , And the characters are in uppercase  ABCD  Between "
  Debug.Print "A125Z" Like "[A-C]*[Y-Z]" ' At least two characters , The first character is in uppercase A-C Between , The last character is in  Y-Z Between 
End Sub