如何在字符串中加入回车换行，ｔａｂ字符(关于字符串处理)

CL_ABAP_CHAR_UTILITIES 中有字符常量:如:CR_LF,HORIZONTAL_TAB,NEWLINE等等. 下面给出字符串中加入回车换行的示例: DATA: crlf(2) TYPE c. DATA: l_html(4096) TYPE C. crlf = cl_ABAP_char_utilities=cr_lf. CONCATENATE l_html crlf '_FUNCTION''30''WWW_GET_REPORT' '' INTO l_html. string的标准函数查找:FIND [{FIRST OCCURRENCE}|{ALL OCCURRENCES} OF] pattern IN dobj替换:REPLACE [{FIRST OCCURRENCE}|{ALL OCCURRENCES} OF] pattern IN dobj WITH new REPLACE SECTION [OFFSET off] [LENGTH len] OF dobj WITH new移动:SHIFT c [BY n PLACES] [mode]拼接:CONCATENATE c1 ... cn INTO c [SEPARATED BY s]分割:SPLIT c AT del INTO c1 ... cn. 大小写转换: TRANSLATE text TO UPPER CASE. TRANSLATE text TO LOWER CASE. 字符串覆盖: OVERLAY c1 WITH c2 [ONLY str]. 压缩字符串: