组合而成，目前我知道的最简操作
参考：
https://blog.csdn.net/qq_45905660/article/details/137051707
https://blog.csdn.net/kk3087961/article/details/154841143
方法
解决方法：
删除下面目录中的所有文件：/home/xxx/.config/bcompare
也就是说（rm -rf 一定小心再小心）
rm -rf ~/.config/bcompare/然后就恢复需要key的状态了
--- BEGIN LICENSE KEY ---
GXN1eh9FbDiX1ACdd7XKMV7hL7x0ClBJLUJ-zFfKofjaj2yxE53xauIfkqZ8FoLpcZ0Ux6McTyNmODDSvSIHLYhg1QkTxjCeSCk6ARz0ABJcnUmd3dZYJNWFyJun14rmGByRnVPL49QH+Rs0kjRGKCB-cb8IT4Gf0Ue9WMQ1A6t31MO9jmjoYUeoUmbeAQSofvuK8GN1rLRv7WXfUJ0uyvYlGLqzq1ZoJAJDyo0Kdr4ThF-IXcv2cxVyWVW1SaMq8GFosDEGThnY7C-SgNXW30jqAOgiRjKKRX9RuNeDMFqgP2cuf0NMvyMrMScnM1ZyiAaJJtzbxqN5hZOMClUTE+++
--- END LICENSE KEY -----