埋め込みの説明
@1@ : STD
例題
[C9103.cob] 000001 @OPTIONS FLAGSW(STDM) 000002 IDENTIFICATION DIVISION. 000003 PROGRAM-ID. C9103. 000004 ENVIRONMENT DIVISION. 000005 CONFIGURATION SECTION. 000006 SPECIAL-NAMES. 000007 ALPHABET FUGOU IS 1. 000008 DATA DIVISION. 000009 PROCEDURE DIVISION. 000010 P-START. 000011 STOP RUN.
C9103.cob 7: JMN9103I-W (STD)ALPHABET句中の定数は共通範囲外です．処理を続行します．
