5、in和not in也要慎用，否则会导致全表扫描，如：select id from t where num in(1,2,3) 对于连续的数值，能用between就不要用in了：select id from t where java网编错误一：Exception in thread "Thread-3" java.lang.NullPointerException 2019-12-11 15:05 −这个问题是空指针造成的。解决方法有两种：以FX-UDP这
can't create lock file/etc/mtab~9811: No space left on device (use -n flag to override) /mnt was not found in/proc/mounts NAS空间突然变小，从3.0T变成2FTP错误530 Not logged in 530 Not logged in, unauthorized IP address. 就是说你的ip是不合法的，不管是因为什么原因，总之除非你与管理者联系并解封，实在是没有继续尝
ERROR: Et7wHrrxEGI: "token" parameter not in video info for unknown reason; please report this issue on https://yt-dl/bug . Make sure you are usERR client ip is not in whitelist Redis ERR illegal address 问题原因Redis实例的白名单设置不正确。解决方案请参见以下操作检查Redis白名单设置：访问
ˇ▽ˇ 文章浏览阅读5.5k次。服务器报错链接rds #28000ip not in whitelist 这个是因为新加了机器，需要在淘宝的rds里配置白名单_#28000ip微信公众号授权失败，出现如下错误信息，错误原因IP白名单获取错误，如下图：解决方法：第一步：登录微信管理后台，进入基本配置页面第二步：查看IP白名单第三步：修改错误IP
if ip not in ips: #如果IP在字典中不存在ips[ip]=1#新增一个IP,写道字典中else: ips[ip]+=1 #value在原来的基础上+1 print(ips) point=f.tell()#记录读完之–reply using the same format, but now with therecipient’s physical address filled in –a routerreplies when the recipient is not in the same LAN –ARP response is aun
