DATA: T(10) VALUE 'abcdefghij',
STRING LIKE T,
STR1(4) VALUE 'cdef',
STR2(4) VALUE 'klmn',
STR3(2) VALUE 'kl',
STR4(6) VALUE 'klmnop',
LEN TYPE I VALUE 2.

STRING = T.
WRITE STRING.

REPLACE STR1 WITH STR2 INTO STRING.
WRITE / STRING.

STRING = T.
REPLACE STR1 WITH STR2 INTO STRING LENGTH LEN.
WRITE / STRING.

STRING = T.
REPLACE STR1 WITH STR3 INTO STRING.
WRITE / STRING.

STRING = T.
REPLACE STR1 WITH STR4 INTO STRING.
WRITE / STRING.

出力は以下のようになります。

abcdefghij

abklmnghij

abklmnefgh

abklghij

abklmnopgh