ios如何清除dns缓存

页面:/news/view-2072888/ | 耗时:0.6052 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2072888 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2072888 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2072888 LIMIT 0,1
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