CCleaner是一款免费的系统优化和隐私保护工具，无论是对于计算机初级用户，还是计算机“老鸟”来说，CCleaner以其快速，绿色，便捷，免费的特点获得了很多用户的亲睐。-CCleaner is a freeware system optimization and privacy tool, both for the computer novice, or a computer " old bird" who, CCleaner with its fast, green, c