請(qǐng)問(wèn)這幾談?lì)}難嗎?為何面試了幾個(gè)均不理想
Jun 13, 2016 am 11:55 AM
請(qǐng)問(wèn)這幾道題難嗎?為何面試了幾個(gè)均不理想.
1.提升網(wǎng)站打開(kāi)速度都有哪些方法?
2.memcache?和?eaccelerator?有哪些差異?
3.mysql?文本檔案?memcache?哪個(gè)讀寫速度最快?哪個(gè)最慢?
4.一個(gè)幾萬(wàn)行的日誌檔案如果要做分析,從中提取出對(duì)我們有用的內(nèi)容,請(qǐng)問(wèn)該怎麼做效能最高,日誌如下:
172.246.113.194?-?-?[20/Mar/2014:03:19:31?+0800]?"GET?http://www.bing.com/search/?q=unbuilding%20%22?HTTP/1.0"?302?-?"http://www.bing.com/"?"Mozilla/5.0?(Windows?NT?6.1;?WOW64)?AppleWebKit/537.31?(KHTML,?like?Gecko)?Chrome/26.0.1410.43?Safari/537.31"
172.246.113.194?-?-?[20/Mar/2014:03:19:32?+0800]?"GET?http://www.***.net/?HTTP/1.0"?200?11629?"http://www.***.net/"?"Mozilla/5.0?(Windows?NT?5.1;?rv:23.0)?Gecko/20100101?Firefox/23.0"
113.97.185.207?-?-?[20/Mar/2014:03:19:56?+0800]?"GET?/favicon.ico?HTTP/1.1"?200?1150?"-"?"Mozilla/5.0?(Windows?NT?5.1)?AppleWebKit/537.17?(KHTML,?like?Gecko)?Chrome/24.0.1312.57?Safari/537.17?SE?2.X?MetaSr?1.0"
5.下邊有幾行錯(cuò)誤代碼,請(qǐng)簡(jiǎn)單的對(duì)每一行錯(cuò)誤代碼進(jìn)行說(shuō)明,並提出解決辦法
Warning:?mysql_num_rows()?expects?parameter?1?to?be?resource,?boolean?given?in?/home/u378761662/public_html/login/checklogin.php?on?line?27
[notice]?Parent:?child?process?exited?with?status?1?--?Restarting.
[error]?[client?127.2.3.4]?File?does?not?exist:?C:/vhosts/www.***.com/undefined,?referer:?http://www.***.com/
Syntax?error?on?line?129
------解決方案--------------------
那很自然，底層程序員不需要知道那么多
知識(shí)夠了也就可以了，少了不知甚解先入為主，以后發(fā)展起來(lái)要快的多
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