TYPES:BEGIN OF TYP_LIKP,
WADAT_IST TYPE LIKP-WADAT_IST.
TYPES:INCLUDE STRUCTURE LIKPV,
END OF TYP_LIKP.
上面的代码是有问题的.INCLUDE结构的时候，前面不需要 TYPES关键字，正确的写法如下：
TYPES:BEGIN OF TYP_LIKP,
WADAT_IST TYPE LIKP-WADAT_IST.
INCLUDE STRUCTURE LIKPV.
TYPES END OF TYP_LIKP.