(1).SCREEN 设计 TABLES: SSCRFIELDS. PARAMETERS: P_EBLEN LIKE VBRK-EBLEN DEFAULT ' '. PARAMETERS: P_CK1 AS CHECKBOX DEFAULT 'X'. PARAMETERS: P_CK2 AS CHECKBOX. PARAMETERS: P_RAD1 RADIOBUTTON GROUP SG1 DEFAULT 'X'. PARAMETERS: P_RAD2 RADIOBUTTON GROUP SG1 . SELECT-OPTIONS: S_EBLEN FOR VBRK-EBLEN NO-EXTENSTION. “无后边的箭头 SELECT-OPTIONS: S_EBLEN FOR VBRK-EBLEN NO INTERVALS. ”无到后边的选项 SELECTION-SCREEN SKIP 1. "产生空行 SELECTION-SCREEN BEGIN OF LINE . "将元素排列到一行 SELECTION-SCREEN END OF LINE. SELECTION-SCREEN ULINE. "画直线 SELECTION-SCREEN COMMENT 10(20) TEXT-001."屏幕上输出文本 SELECTION-SCREEN BEGIN OF BLOCK BK1 WITH FRAME TITLE TEXT-002. SELECTION-SCREEN END OF BLOCK BK1. SELECTION-SCREEN PUSHBUTTON 50(10) TEXT-003 USER-COMMAND BUT1. "产生按钮 SELECTION-SCREEN FUNCTION KEY 1. "工具条按钮 最多为5个. PARAMETERS: <P> .... MEMORY ID <PID>. "从全局SAP内存(SPA/GPA参数)使用缺省值 SET PARAMETERS ID 'HK' FIELD 'Test Parameters' "以'HK'为名称在全局SAP内存中存储值. PARAMETERS: P_TEST(16) TYPE C MEMORY ID HK. "使用缺省值 GET PARAMETERS ID ' ' FIELD ' '. INITIALIZATION. SSCRFIELDS-FUNCTXT_01 = 'Button 1'. SSCRFIELDS-UCOMM = 'FC01'. (2).修改SCREEN NAME “字段名称 GROUP1 ”字段组1 GROUP2 “字段组2 GROUP3 ”字段组3 GROUP4 “字段组4 ACTIVE ”可见并准备输入的字段 REQUIRED “强制输入的字段 INPUT ”字段准备输入 OUTPUT ”字段仅用来显示 INTENSIFIED ”高亮显示字段 INVISIBLE “字段不可见 LENGTH “设置字段长度 DISPLAY_3D “以3围框架显示字段 VALUE_HELP ”显示有值帮助的字段 在PBO模块中对字段进行属性修改 MODULE MODIFY_SCREEN OUTPUT. LOOP AT SCREEN. CHECK SCREEN-GROUP1 = 'MOD'. SCREEN-INPUT = 0. MODIFY SCREEN. ENDLOOP. ENDMODULE. (3) 使用子屏幕 CALL SUBSCREEN <AREA> INCLUDING <PROGRAM> <SCREEN> (4)设置光标位置 SET CURSOR FIELD <FIELD_NAME> OFFSEY <POSITION> 设置光标的特定位置 (5)设置下一个屏幕 SET SCREEN <SCREEN_NUMBER>. CALL SCREEN <SCREEN_NUMBER>.调用新的屏幕序列 LEAVE TO SCREEN 0. SET SCREEN 0. LEAVE SCREEN. (6)后台处理屏幕 可以使用SUPPRESS DIALOG 取消所有屏幕. *---------PBO MODULE OF SCREEN 100. CALL SCREEN 110 STARTING AT 10 5. *---------SCREEN 110 FLOW LOGIC MODULE DIALOG_WINDOWS OUTPUT. SUPPRESS DIALOG. LEAVE TO LIST-PROCESSING AND RETURN TO SCREEN 0. WRITE: /. WRITE: /. ENDMODULE. (7)报表及选择屏幕事件过程 报表事件过程 INITIALIZATION 用于屏幕初始化，例如屏幕字段默认值的填充 START-OF-SELECTION END-OF-SELECTION 选择屏幕事件 在INITIALIZATION之前 STATR-OF-SELECTION之后触发 AT SELECTION-SCREEN OUTPUT."对选择屏幕字段进行修改 AT SELECTION-SCREEN INPUT. 处理特殊输入字段 AT SELECTION-SCREEN ON <FIELD> 创建值输入列表 AT SELECTION-SCREEN ON VALUE-REQUEST FOR <FIELD>. 创建输入字段的帮助 AT SELECTION-SCREEN ON HELP-REQUEST FOE <FIELD>. 处理单选按钮组 AT SELECTION-SCREEN ON RADIOBUTTON GROUP <RADIO> 处理输入字段块 AT SELECTION-SCREEN ON BLOCK <BK1>. 这篇文章涉及到了选择屏幕的一些基本控件和事件过程，有些功能在实际的开发过程中还没用到，有不足的地方也请各位网友给出指正.
