对多行文本进行筛选。将重复的删掉。只留不重复的。自己的c#开发的。为了帐号。直接上传了。没有图标。抱歉。运行环境需要安装.net-Multiple lines of text to be screened. Will delete the duplicate. Leaving only the non-repetition. The c# development. In order to account. Direct upload. No icon. Sorry. Operating envi