ABAP系统变量说明名称Name类型Type说明Contentsy-abcdec(26)包含了字母表。可以用来通过指定偏移/长度直接访问独立的字母，而无需考虑代码页。Contains the alphabet. Can be used to access individual letters directly by specifying the offset/length, regardless of the code page.sy-batchc(1)在一个后台运行的ABAP程序中设置为“X”，否则就是初始值。Set to X in an ABAP program that runs in the background, otherwise initial.sy-binptc(1)在批处理输入会话中设置为“X”，在ABAP程序中调用using CALL TRANSACTION USING。否则就是初始值。Set to X during processing of batch input sessi
