我正在寻找一个匹配以下内容的正则表达式:
firstname.lastname + expense@mydomain.com
- joe.smith + expense@mydomain.com (与)
- joesmith@mydomain.com(不匹配)
- jsmith+expense@mydomain.com(不匹配)
[a-zA-Z]+.[a-zA-Z]++expense@mydomain.com