1、
PARAMETER：输入一个变量或字段内容
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语法：PARAMETERS <p> [DEFAULT <f>] [LOWER CASE]
[OBLIGATORY] [AS CHECKBOX]
[RADIOBUTTON GROUP <rad>]
2、SELECTION-OPTIONS: 使用条件筛选画面来输入数据
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语法：SELECTION-OPTIONS <check-option> FOR <table-field>
[DEFAULT <begin> TO <end>]
[NO-EXTENSION]
[LOWER CASE]
[OBLIGATORY]
[Select 指令]
3、SELECTION-SCREEN : 输出空白列、底线、备注说明、多个数据据、黑线等
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语法：SELECTION-SCREEN SKIP [<n>]
[ULINE / <pos>(length)]
[COMMENT / <pos>(length) <name>]
[BEGIN OF LINE.
……
SELECTION-SCREEN END OF LINE.]
[BEGIN OF BLOCK <block> [WITH FRAME [TITLE <title>].
…….
SELECTION-SCREEN END OF BLOCK <block>.]