如题，在string类型Ａ字符串中查询匹配string类型Ｂ字符串，方法如下：
DATA: a TYPE string VALUE ‘ABCDEFGHIJKLNM‘,
b TYPE string VALUE ‘EFGHIJ‘,
c TYPE string .
DATA: off TYPE i VALUE 0, "从自己个字符开始查找
moff TYPE i,
mlen TYPE i.
FIND b IN SECTION OFFSET off OF
a
MATCH OFFSET moff " => moff = 4 匹配成功 开始于第四个字符（从0 开始）
MATCH LENGTH mlen. " => mlen = 6 匹配成功 字符长度
IF sy-subrc = 0.
CONCATENATE a ‘；‘ b INTO c.
ENDIF.
WRITE: c,moff,mlen. " => ABCDEFGHIJKLNM；EFGHIJ 4 6
