(1-1)string->Char: C
(1-2)string->PChar: ABCD
(1-2)string->PChar: ABCD
(1-3)string->Charの配列: ABCD
(2-1)Char->string: A
(2-1)Char->string: A
(2-2)Char->PChar: A
(2-3)Char->Charの配列: A
(3-1)PChar->string: ABCD
(3-1)PChar->string: ABCD
(3-2)PChar->Char: C
(3-3)PChar->Charの配列: ABCD
(4-1)Charの配列->string: ABCD
(4-1)Charの配列->string: ABCD
(4-2)Charの配列->Char: C
(4-3)Charの配列->PChar: ABCD