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Python数据类型
一、数字 1.INT(整型) 即整数,如5 2.LONG(长整型) 长整数 3.FLOAT(浮点型) 带有小数的数字 使用type()查看变量类型 二、字符串 “hello world” 1.使用反斜杠(\)转义特殊字符 >>> s = "yes,he doesn\'t" >>> print(s,t ...
分类:编程语言   时间:2016-05-25 11:05:32    阅读次数:194
Part 2: Oracle E-Business Suite on Cloud FAQ
Running Oracle E-Business Suite on Oracle Cloud is simple, but it doesn't take too much effort to come up with several great questions about this new ...
分类:数据库   时间:2016-05-24 16:47:20    阅读次数:261
Codeforces Round #353 (Div. 2)Restoring Painting
Vasya works as a watchman in the gallery. Unfortunately, one of the most expensive paintings was stolen while he was on duty. He doesn't want to be fi ...
分类:其他好文   时间:2016-05-23 06:44:00    阅读次数:251
MySQL 5.7启动失败
1.1.1现象下载MySQL5.7的zip包解压缩以后,配置好data、tmp目录,启动数据库失败,查看错误日志内容如下:mysqld:Table‘mysql.plugin‘doesn‘texist2015-10-22T06:17:52.073875Z0[ERROR]Can‘topenthemysql.plugintable.Pleaserunmysql_upgradetocreateit.1.1.2原因应该是没有默..
分类:数据库   时间:2016-05-23 01:13:01    阅读次数:231
map与vector---Email Aliases
Description Polycarp has quite recently learned about email aliases. Of course, he used to suspect that the case of the letters doesn't matter in emai ...
分类:其他好文   时间:2016-05-22 16:50:19    阅读次数:183
hdu 1342.. 复习广搜 顺便练习一下一个脑残的格式
In a Lotto I have ever played, one has to select 6 numbers from the set {1,2,...,49}. A popular strategy to play Lotto - although it doesn't increase ...
分类:其他好文   时间:2016-05-18 23:34:16    阅读次数:219
mysql启动报错:Table 'mysql.host' doesn't exist
今天在安装mysql后,启动时候没有启动成功,查看了下日志报错如下:---------------------------------------------[root@localhostlocal]#less/var/log/mysqld.log1、查看报错信息如下:[ERROR]Fatalerror:Can‘topenandlockprivilegetables:Table‘mysql.host‘doesn‘texist2、经..
分类:数据库   时间:2016-05-15 12:44:14    阅读次数:350
mysql启动报错:Table 'mysql.host' doesn't exist
今天在安装mysql后,启动时候没有启动成功,查看了下日志报错如下:---------------------------------------------[root@localhostlocal]#less/var/log/mysqld.log1、查看报错信息如下:[ERROR]Fatalerror:Can‘topenandlockprivilegetables:Table‘mysql.host‘doesn‘texist2、经..
分类:数据库   时间:2016-05-15 12:43:28    阅读次数:256
mysql启动报错:Table 'mysql.host' doesn't exist
今天在安装mysql后,启动时候没有启动成功,查看了下日志报错如下:---------------------------------------------[root@localhostlocal]#less/var/log/mysqld.log1、查看报错信息如下:[ERROR]Fatalerror:Can‘topenandlockprivilegetables:Table‘mysql.host‘doesn‘texist2、经..
分类:数据库   时间:2016-05-15 12:43:25    阅读次数:281
【Linux学习笔记】关于ubuntu开机菜单栏和任务栏不见了的有效解决方法
(一) 问题描述ubuntu开机只有桌面,没有菜单栏和任务栏,如下图: (二) 问题解决刚学习ubuntu,总有些像我这样不折腾就不舒服的人,今天改了一下主题,图标什么的,重启开机后就发现!咦!我的菜单栏和任务栏呢?它们都跑到哪里去了! 于是就各种百度啊,google啊,试过一大堆的方法,都没法解决! 终于!皇天不负有心人,在Unity doesn’t load, no Launcher, n...
分类:系统相关   时间:2016-05-13 03:28:04    阅读次数:850
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