A comment is a character-string that can contain any combination of characters from the character set of the computer. It has no effect on the execution of the program. There are two forms of comments:
Character-strings that form comments can contain DBCS characters or a combination of DBCS and single-byte EBCDIC characters.
Multiple comment lines that contain DBCS strings are allowed. The embedding of DBCS characters in a comment line must be done on a line-by-line basis. Words containing those characters cannot be continued to a following line. No syntax checking for valid strings is provided in comment lines.