埋め込みの説明
@1@ : 関数の引数
例題
[C3398.cob] 000001 IDENTIFICATION DIVISION. 000002 PROGRAM-ID. C3398. 000003 ENVIRONMENT DIVISION. 000004 INPUT-OUTPUT SECTION. 000005 DATA DIVISION. 000006 WORKING-STORAGE SECTION. 000007 01 A PIC S9(4) BINARY. 000008 01 B PIC N(4). 000009 PROCEDURE DIVISION. 000010 MOVE FUNCTION NATIONAL( A ) TO B. 000011 STOP RUN.
C3398.cob 10: JMN3398I-S FUNCTION NATIONALの引数'A'は，英字項目，英数字項目，英数字編集項目，数字編集項目，外部10進項目のいずれかでなければなりません．
