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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...Push-Pull机制的数据更新机制,在一些对数据实时性要求较高的场合,比如直播比赛得分,实时天气预报,交易所实时行情等方面用的很多。并且通过RTD的这种机制我们可以在此基础上实现异步的UDF函数,即当请求发进来的时候,...
Hiding a password in a python script (insecure obfuscation only)
...eant that you would code a feature like this and add the ability to read a passwd from a file
– Martin Beckett
Dec 10 '15 at 22:42
...
【最全】CSS响应式布局的5种实现方式 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...素的 top 和 bottom 如果设置百分比,则相对于直接非 static 定位(默认定位)的父元素的高度,同样,子元素的 left 和 right 如果设置百分比,则相对于直接非 static 定位(默认定位的)父元素的宽度。
2、子元素的 padding 和 margin ...
MySQL “incorrect string value” error when save unicode string in Django
... automatically.
#! /usr/bin/env python
import MySQLdb
host = "localhost"
passwd = "passwd"
user = "youruser"
dbname = "yourdbname"
db = MySQLdb.connect(host=host, user=user, passwd=passwd, db=dbname)
cursor = db.cursor()
cursor.execute("ALTER DATABASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unic...
Python: How would you save a simple settings/config file?
...host:::localhost:::<type 'str'>
x user:::root:::<type 'str'>
x passwd:::my secret password:::<type 'str'>
x db:::write-math:::<type 'str'>
Section: other
x preprocessing_queue:::["preprocessing.scale_and_center",
"preprocessing.dot_reduction",
"preprocessing.connect_lines"]::...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...t know what your postgres user's password is? Change it like this:
1) Run passwd as a superuser:
$ sudo passwd postgres
2) Enter your accounts password for sudo (nothing to do with postgres):
[sudo] password for starkers: myaccountpassword
3) Create the postgres account's new passwod:
Enter ...
App Inventor 2 离线版 - 免登录,离线用,一键启动,App开发so easy!
... 不妨试试我们的离线版,早已完美解决AI伴侣测试的各种问题。 技术支持:做您最坚强的后盾! 不仅如此,您遇到的任何问题,或许我们早就有了解决方案。 ...
那些微信公众大号是如何赚钱的? - 资讯 - 清泛网 - 专注C/C++及内核技术
...众号比其它创业项目成本更低,也更容易实现盈利。怎么定位、哪种风格、什么内容、几时更新,通通由你决定。正如“毒舌来啦”运营者高小毛所说,公众号对大家都很公平,内容好且营销得当,你就能和传统媒体获得几乎一...
vim 命令与快捷键 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...I:行首a:光标前A:行末o:光标后插入新行O:光标上插入新行定位h:leftj:downk:upl:right$:行尾0:行首H:...:set nu 设置行号
插入命令
i:光标后
I:行首
a:光标前
A:行末
o:光标后插入新行
O:光标上插入新行
定位
h:left
j:down
k:up
l:ri...
Reading specific lines only
...above:
>>> import linecache
>>> linecache.getline('/etc/passwd', 4)
'sys:x:3:3:sys:/dev:/bin/sh\n'
Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based.
If the file might be very large, and cause problems whe...