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所在平台: Udemy |
课程主页: https://www.udemy.com/course/cobolvenkatsince2010/
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Here's a Chinese content summary of the COBOL Module on Z/OS - Mainframe course: **课程名称：Z/OS - 大型机上的 COBOL 模块 [从入门到专家]** **课程概述：** 本课程旨在为学员提供Z/OS系统环境中COBOL编程的全面指导，涵盖从基础概念到高级应用的各个方面，帮助学员从初学者成长为专家。 **核心内容：** * **COBOL 基础：** * COBOL 简介 * COBOL 编码表及编码规则 * COBOL 程序结构 * 如何编写一个完整的 COBOL 程序 * **程序编译与运行：** * 编译过程详解：Compile, Linked Edit, Run * JCL（作业控制语言）介绍 * 关键 JCL 语句：IGYCRCTL, IEWL, STEPLIB * **COBOL 程序结构详解：** * **DIVISIONS** 的深入探讨：IDENTIFICATION, ENVIRONMENT, DATA, PROCEDURE DIVISION * **DATA DIVISION** 详细讲解： * Working-Storage section * Level Numbers (01 - 49) * Level 77 基础项 * REDEFINES 和 RENAMES 子句 * 88 condition names (条件名称) * VALUE 和 VALUE ALL 子句 * **COBOL 动词与操作：** * 常用的 COBOL Verbs * Abends (异常终止) 的原因与处理 * 变量声明 * MOVE VERB 和 OF 子句 * Picture 子句的编辑 * 算术动词：ADD, SUBTRACT, MULTIPLY, DIVIDE 和 COMPUTE * 关系运算符和逻辑运算符 * 条件语句：IF 和 EVALUATE * Sign (符号) 和 Class (类型) 条件 * 字符串处理：STRING, UNSTRING, INSPECT * PERFORM：Inline PERFORM, Outline PERFORM, Perform with N times, Perform with UNTIL condition, Perform with VARYING, Perform with THROUGH * NEXT SENTENCE 与 CONTINUE 动词的区别 * STOP RUN, EXIT PROGRAM, GOBACK 的区别 * **文件处理：** * Sequential File（顺序文件）的读写及 SPOOL 输出 * 将顺序文件数据写入 Entry Sequenced Dataset (ESD) * 根据不同条件将顺序文件数据写入多个文件 * KSDS (Key Sequenced Data Set) 的处理： * Sequential sequential, Random and Dynamic Reads（顺序、随机和动态读） * Write, Rewrite/Update, Delete (写入、重写/更新、删除) * 查看 COMP 数据的可视化方法 * **高级主题：** * Alternate index (备用索引) * Arrays/Table Handling/Occurs (数组/表处理/Occurs) * Subprograms/Subroutines (子程序/子例程) * CALL 方式：Static call (静态调用), Dynamic call (动态调用) * 参数传递：Call by reference, Call by content/value (按引用、按内容/值传递)
Introduction to COBOLCOBOL Coding sheetCoding rules, COBOL program structureHow to write a COBOL programCompilation process: Compile, Linked Edit, Run JCLIGYRCRCTL,IEWL,STEPLIBDiscussed about DIVISIONS: IDENTIFICATION, ENVIRONMENT, DATA and PROCEDURE DIVISIONWorking-Storage sectionLevel Numbers01 - 4966 renames77 Elementary items88 Condition namesVALUE and VALUE ALL clauseDiscussed about COBOL verbsAbendsVariables declarationMove VERB and OF ClauseEditing picture clausesArithmetic verbs(ADD, SUBTRACT, MULTIPLE, DIVIDE and COMPUTE)Relational operatorsLogical operatorsConditional statements (IF and Evaluate)Sign and class conditionsString, Unstring and InspectPerform: Inline and Outline PerformSimple performPerform with N timesPerform with Until conditionPerform with VaryingPerform with THRUDifferences between Next sentence and Continue verbsDifferences between STOP RUN, EXIT PROGRAM and GOBACKFile Handling in COBOL:How to read the data from Sequential file and display them in SPOOLHow to read the data from sequential file and writing them into Entry Sequenced DatasetHow to read the data from sequential file and writing them into multiple files based on different conditionsHandling KSDS: Sequential Read, Random and Dynamic Reads,Write,Rewrite/Update, DeleteHow to view the COMP data Alternate indexArrays or table handling or OccursSub programs or sub routinesStatic callDynamic callCall by referenceCall by Call content/Value
