当初重装前 备份了全部和post member thread home相关的备份，重装时我用了新数据前缀yylt_，修改了post member thread home相关的备份里面前缀为yylt_并导入恢复，但现在会员密码都错误，后台会员数正确，uc后台会员数1，怎么整各位求指教
旧数据xnlt_   还在phpmyadmin