ÕªÒª£º using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading.Tasks; namespace listTst { class Program { stat... ÔĶÁÈ«ÎÄ
posted @ 2019-07-23 16:31 cclon ÔĶÁ(2083) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º //(obj)¶ÔÏóstringÀàÐÍ nullת¿Õ×Ö·û´®ºÍȥǰºó¿Õ¸ñ obj.ObjectNullToString<ÀàÃû>(); ÔĶÁÈ«ÎÄ
posted @ 2019-05-17 16:03 cclon ÔĶÁ(1826) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º ºº×Ö³¤¶ÈÓë±àÂëÓÐ¹Ø MySql 5.0 ÒÔÉϵİ汾£º 1¡¢Ò»¸öºº×ÖÕ¼¶àÉÙ³¤¶ÈÓë±àÂëÓйأº UTF-8£ºÒ»¸öºº×Ö = 3¸ö×Ö½Ú£¬Ó¢ÎÄÊÇÒ»¸ö×Ö½Ú GBK£º Ò»¸öºº×Ö = 2¸ö×Ö½Ú£¬Ó¢ÎÄÊÇÒ»¸ö×Ö½Ú 2¡¢varchar(n) a56爆大奖在线娱乐n¸ö×Ö·û£¬ÎÞÂÛºº×ÖºÍÓ¢ÎÄ£¬MySql¶¼ÄÜ´æÈë n ¸ö×Ö·û£¬½öʵ¼Ê×Ö½Ú³¤¶ÈÓÐËùÇø ÔĶÁÈ«ÎÄ
posted @ 2019-05-16 11:12 cclon ÔĶÁ(5335) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º //²é¿´±¾»úIP ipconfig ÄÚÍøÆ´ÆäËû»ú×Ó£¬ ÆäËû»ú×ÓÒ»¶¨Òª¹Ø±Õ·À»ðǽ ping 192.168.198.46 telnet 192.168.198.46 3000 Æ´¶Ë¿Ú »áÌøתa56爆大奖在线娱乐ͨÁË ping www.baidu.com ÔĶÁÈ«ÎÄ
posted @ 2019-04-16 18:15 cclon ÔĶÁ(361) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º MYSQL Éú³ÉUUID ¼´ guid º¯Êý-- ´ø - µÄUUIDselect UUID() -- È¥µô - µÄUUIDselect replace(uuid(),'-','') Ò»¸ö±íµÄÊý¾Ý²åÈëÁíÒ»¸ö±íÖС£ INSERT INTO Ä¿±ê±í SELECT * FROM À´Ô´±í; INSERT IN ÔĶÁÈ«ÎÄ
posted @ 2019-04-16 14:06 cclon ÔĶÁ(1552) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º 1 cmd ´´½¨ÏîÄ¿ ÕÒµ½Ö¸¶¨Ä¿Â¼ vue create test »ò vue ui £¨¿ÉÊÓ»¯´´½¨£©ÍƼö 2 ÆäËûÒÀÀµÏîÃüÁî ´ò¿ªÏîÄ¿Ö´ÐÐ cnpm i £¨²»¿ÉÒÔÐèÒª£¬´´½¨ÏîÄ¿µÄʱºòÒѾ­°²×°ÕâЩÒÀÀµ£© 3 °²×° iview ÃüÁî cnpm i -S iview ×îаæ cnpm i -D sass- ÔĶÁÈ«ÎÄ
posted @ 2019-04-03 15:12 cclon ÔĶÁ(11165) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º jsÕýÔò±í´ïʽ ÕûÊý»òÕßСÊý£º^[0-9]+\.{0,1}[0-9]{0,2}$ Ö»ÄÜÊäÈëÊý×Ö£º"^[0-9]*$"¡£ Ö»ÄÜÊäÈënλµÄÊý×Ö£º"^\d{n}$"¡£ Ö»ÄÜÊäÈëÖÁÉÙnλµÄÊý×Ö£º"^\d{n,}$"¡£ Ö»ÄÜÊäÈëm~nλµÄÊý×Ö£º¡£"^\d{m,n}$" Ö»ÄÜÊäÈëÁãºÍ·ÇÁ㿪ͷµÄÊý×Ö£º"^(0|[1-9][0-9]*)$"¡£ Ö»ÄÜÊäÈëÓÐÁ½Î»Ð¡ÊýµÄÕýʵÊý£º"^[0-9]+(.[0-9... ÔĶÁÈ«ÎÄ
posted @ 2019-03-08 22:10 cclon ÔĶÁ(160) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º update table_name1 aset a.name= (select b.name from table_name2 b where a.oid= b.id)where exists (select 1 from table_name2 c where a.oid= c.id); ÔĶÁÈ«ÎÄ
posted @ 2019-03-08 21:58 cclon ÔĶÁ(354) ÆÀÂÛ(0) ÍƼö(0) ±à¼­
ÕªÒª£º 1¡¢²éѯÊÇ·ñËø±í show OPEN TABLES where In_use > 0; 2¡¢²éѯ½ø³Ì show processlist ²éѯµ½Ïà¶ÔÓ¦µÄ½ø³Ì È»ºó kill id ²¹³ä£º ²é¿´ÕýÔÚËøµÄÊÂÎñ SELECT * FROM INFORMATION_SCHEMA.INNODB_LOCKS; ²é ÔĶÁÈ«ÎÄ
posted @ 2019-03-08 21:54 cclon ÔĶÁ(53245) ÆÀÂÛ(0) ÍƼö(1) ±à¼­
ÕªÒª£º using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Console ÔĶÁÈ«ÎÄ
posted @ 2019-03-08 21:34 cclon ÔĶÁ(28864) ÆÀÂÛ(1) ÍƼö(0) ±à¼­