indexOf出问题了擦

Question

这是code:
logger.info("!!cc:" + cc);
logger.info("!!MailGroupName:" + mail_group_name);
logger.info("!!RESULT1:" + (cc.indexOf(mail_group_name)));这是log:
[INFO ][12/08/06 13:54:46] !!cc:"SN-GZ-Support","AAAA AA","BBBB BB"
[INFO ][12/08/06 13:54:46] !!MailGroupName:SN-INF-Support
[INFO ][12/08/06 13:54:46] !!RESULT1:-1

Answer 1

"SN-GZ-Support","AAAA AA","BBBB BB"这个字符串中是无法匹配SN-INF-Support的，所以返回-1；
"SN-GZ-Support","AAAA AA","BBBB BB"这个字符串中是可以匹配SN-GZ-Support的；