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  • 一步步Cobol 400 上手自学入门教程02

    标识部的格式:

    标识部(IDENTIFICATION DIVISION)

    用来标识程序名称,记录程序的文档记录住处如作者和日期等。

    代码范例:

    IDENTIFICATION DIVISION.
    PROGRAM-ID. IDSAMPLE.
    AUTHOR. PROGRAMMER NAME.
    INSTALLATION. COBOL DEVELOPMENT CENTER.
    DATE-WRITTEN. 08/27/88.
    DATE-COMPILED. 09/01/88 12:57:53.
    SECURITY. NON-CONFIDENTIAL.

    环境部的格式:

    环境部(ENVIRONMENT DIVISION)

    用来描述程序运行和编译的计算机环境,内部数据文件与系统设备的对应关系。

    代码范例

    ENVIRONMENT DIVISION.
    CONFIGURATION SECTION.
    SOURCE-COMPUTER. IBM-AS400.
    OBJECT-COMPUTER. IBM-AS400.
    SPECIAL-NAMES. Cð1 IS TOP-OF-PAGE. 

    SOURCE-COMPUTER 定义的是需要编译原代码的机器.OBJECT-COMPUTER是目标计算机

    SPECIAL-NAMES的范例:

    SPECIAL-NAMES. SYSTEM-CONSOLE IS SYSTM
    REQUESTOR IS WORK-STATION
    C01 IS NEXT-PAGE
    LOCAL-DATA IS LOCAL-DATA-AREA
    ATTRIBUTE-DATA IS ATTRB-DATA
    SYSTEM-SHUTDOWN IS SHUTDOWN-SWITCH
    ON STATUS IS SHUTDOWN-PENDING
    UPSI-0 IS UPSI-SWITCH-0
    ON STATUS IS U0-ON
    OFF STATUS IS U0-OFF
    UPSI-1 IS UPSI-SWITCH-1
    ON STATUS IS U1-ON
    OFF STATUS IS U1-OFF
    IBM-ASCII IS STANDARD-1
    CURRENCY-SIGN IS "Y".

    Environment Division—Input-Output

    指定外部存储和输入输出设备,文件类型包含四种文件,database files, device files, DDM files, and save files

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  • 原文地址:https://www.cnblogs.com/starcrm/p/5764175.html
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