In ASP, let replace replaces case-insensitive method _ Application Tips

Let's take a look at the detailed parameters of Replace

Describe
Returns a string in which a specified number of substrings are replaced with another substring.
Grammar
Replace (expression, find, replacewith[, compare[, count[, start]])

The syntax for the Replace function has the following parameters:

Parameter description
expression Required option. A string expression contains a substring to override.
Find required Options. The substring being searched for.
ReplaceWith required option. The substring to replace.
Start option. The location at which to start searching for substrings in expression. If omitted, the default value is 1. When associating with count, you must use the
Count can be selected. The number of execution substring substitutions. If omitted, the default value is-1, which means that all possible substitutions are made. Must be used when associating with start.
Compare can be selected. Indicates the numeric value of the comparison type to use when calculating the substring. For numeric values, see the "Settings" section. If omitted, the default value is 0, which means that binary comparisons must be made.

Set up
The Compare parameter can have the following values:
Constant numerical description
Vbbinarycompare 0 performs binary comparisons.
vbTextCompare 1 performs a text comparison.

return value
Replace returns the following values:
If Replace returns
Expression is a zero-length 0-length string ("").
Expression is a Null error.
Find is a zero-length expression copy.
ReplaceWith is a zero-length expression copy that deletes all the content specified by the find parameter.
Start > Len (expression) 0 length string.
Count is a copy of 0 expression.

Description
The return value of the Replace function is a string that is replaced (starting at the position specified by start to the end of the expression string), rather than a copy from the beginning to the end of the original string.
The following example uses the Replace function to return a string:

Copy Code code as follows:

Dim MyString
MyString = Replace ("Xxpxxpxxp", "P", "Y") ' binary comparison starts at the left end of the string. Returns "Xxyxxpxxy".
MyString = Replace ("Xxpxxpxxp", "P", "Y", ' text comparison starts with the third character. Returns "Yxxyxxy". 3,,-1, 1)

Method One: Direct use of ASP with function Replace this is also the easiest way

Title=replace (title, "DF", "SD", 1,-1,1)

Replace function parameter detailed:
Parameter 1: source string
Parameter 2: The character to be replaced
Parameter 3: The new character. , either to replace some characters in the source string with the newly specified character
Parameter 4: value is 1. Specifies that the string be searched starting at the first character
Parameter 5: The value is-1 specifies that each substring is to be replaced
Parameter 6: A value of 1 specifies that comparisons of strings are case-insensitive.

Two functions (highlighting keywords)
Method 2: Replace the specified character with a regular case-insensitive case
Here is the function source code:

Copy Code code as follows:

'//function: string substitution
'//parameter: regular expression, replaced string, replacement string
Public Function replacetest (patrn, MSTR, REPLSTR)
Dim regEx
Set regEx = New RegExp
Regex.pattern = patrn
Regex.ignorecase = True
Regex.global = True
Replacetest = Regex.Replace (MSTR, REPLSTR)
Set regEx = Nothing
End Function