This function is used to compare two strings. It returns positive if String a is greater than String b, returns 0 if String a is equal to String b, and returns negative if String a is less than String b.
Parameters
Return value
The return value is an Integer.
Examples
StrCmp("He is Tom", "I am student")
StrCmp("He is Tom", "He is Tom")
StrCmp("I am student", "He is Tom")