Introduction - If you have any usage issues, please Google them yourself
This procedure requires editing the string string to achieve the following four functions: (1) check substring: from the given string to retrieve a subset of fixed-length string (2) Insert: insert a string to a given string of the specified location (3) Delete: The string in a specified location of the beginning of a number of characters to remove from the string (4) connection string: a string inserted into the given string after the last character.