pchar其实是个指针。
你先试验下。
如下我zz的帮助:
A PChar is a pointer to a null-terminated string of characters of the type Char. Each of the three character types also has a built-in pointer type:
A PChar is a pointer to a null-terminated string of 8-bit characters.
A PAnsiChar is a pointer to a null-terminated string of 8-bit characters.
A PWideChar is a pointer to a null-terminated string of 16-bit characters.
PChars are, with short strings, one of the original Object Pascal string types. They were created primarily as a C language and Windows API compatibility type.