{代码...} 提示 You need to have Ruby and scss-lint gem installed 这个 该怎么办?Ruby 有呀 scss-lint 怎么办? gem install scss-lint {代码...} You don't have write permissions for the /Library/Ruby/G...
形如 A and not (B or C) 数据库记录结构为: { {'pic':[1,2,3,6]} {'pic':[2,3,4]} {'pic':[3,4,5,6,7,8]} {'pic':[5,6,7,8,9]} } 如果要查询以上的结构,比如想要查找: 3在pic里面,而7 或 9 不在pic里面的字...