摘要: 为什么不要使用"using namespace XXX" 1、避免降低性能 2、避免Entity冲突 This is not related to performance at all. But consider this: you are using two libraries called Fo 阅读全文
posted @ 2017-08-25 14:53 xiulug 阅读(423) 评论(0) 推荐(0) 编辑