Searches the Substring in the String
and returns index of a first character in this String
that matches the requested substring or characters.
If a string is not found, function returns 0.
Arguments:
String - String in which will
be search.
Substring - Specifies a substring
to search for.
nStart - Specifies the index of the
character in the string to begin the search with, or 1 to
start from the beginning. The character at nStart
is excluded from the search if nStart is not less
or equal to 1.
Examples:
String = "Hello World"
i = Find(String,"World")
i is now 7
String = "Hello Hello World"
i = Find(String,"Hello")
i = Find(String,"Hello",i)
i is now 7
