1.字符串连接--CONCATENATE
CONCATENATE field1 field2 field3 INTO field [SEPERATED BY SPACE] [RESPECTING BLANKS].
2.字符串分割--SPLIT
SPLIT field AT '-' INTO field1 field2 field3.
3.字符串截取--使用加号(+)
field = field(n).截取前n个字符
field = field+n(m).从n处截取m个字符
4.字符串替换--REPLACE
REPLACE ALL OCCURRENCES OF pattern1 IN field WITH pattern2.
5.字符串大小写转换--TRANSLATE
TRANSLATE field TO UPPERCASE.
TRANSLATE field TO LOWERCASE.
6.字符串查找--FIND
FIND pattern IN field. 通过SY-SUBRC 进行判断
下面给出一段实例代码:
DATA:str1(10) TYPE C,
str2(10) TYPE C,
str3(10) TYPE C,
str4(10) TYPE C,
str5(20) TYPE C,
str6(10) TYPE C,
str7(10) TYPE C,
str8(10) TYPE C,
str9(10) TYPE C.
str1 = 'Hello '.
str2 = 'ABAP'.
*合并
WRITE:/ '合并：'.
CONCATENATE str1 str2 INTO str3."合并时候去掉空格
CONCATENATE str1 str2 INTO str4 SEPARATED BY ','."合并时候加上指定字符
CONCATENATE str1 str2 INTO str5 RESPECTING BLANKS."合并时候保留前后空格
WRITE: / 'str3 =',str3,
/'str4 =', str4,
/'str5 =',str5.
*分割
WRITE:/ '分割：'.
SPLIT str4 AT ',' INTO str6 str7.
WRITE: / 'str6 =',str6,
/ 'str7 =',str7.
*截取
WRITE:/ '截取：'.
str8 = str3(6)."截取前6个字符
str9 = str3+2(6)."从第2位字符开始,截取6个字符
WRITE: / 'str8 =',str8,
/ 'str9 =',str9.
*替换
WRITE:/ '替换：'.
REPLACE ALL OCCURRENCES OF 'll' IN str3 WITH 'oo'.
WRITE:/ 'str3 =',str3.
*大小写转换
WRITE:/ '大小写转换：'.
TRANSLATE str3 TO UPPER CASE.
WRITE:/ str3.
TRANSLATE str3 TO LOWER CASE.
WRITE:/ str3.
*搜索指定字符串
WRITE:/ '搜索指定字符串：'.
SEARCH str3 FOR 'e'.
IF SY-SUBRC = 0.
WRITE:/ '指定字符串第一次出现的位置：',SY-FDPOS."查找内容第一次出现的位置
ENDIF.
执行结果：
