埋め込みの説明
@1@ : SIA，STD
例題
[P9346.cob] 000001 @OPTIONS FLAGSW(STDI) 000002 IDENTIFICATION DIVISION. 000003 PROGRAM-ID. P9346. 000004 DATA DIVISION. 000005 WORKING-STORAGE SECTION. 000006 COPY "WRKREC.cbl". 000007 PROCEDURE DIVISION. 000008 STOP RUN.
[WRKREC.cbl] 000001 01 DATA1 PIC X(10).
P9346.cob 6: JMN9346I-W (STD)原文名定数は共通範囲外です．処理を続行します．
