大约有 577 项符合查询结果（耗时：0.0270秒） [XML]
How to round an average to 2 decimal places in PostgreSQL?
...ecision is only available for numeric.
regress=> SELECT round( float8 '3.1415927', 2 );
ERROR: function round(double precision, integer) does not exist
regress=> \df *round*
List of functions
Schema | Name | Result data type | Argument data types | Type
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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
...绍... 1
2.2 框架介绍... 2
2.3 主要类介绍... 4
2.3.1 CGridCtrl类... 4
2.3.2 CGridCellCheck类... 5
2.3.3 CGridCellCombo类... 7
2.4 控件类CGridCtrl常用函数说明... 10
2.4.1 行和列的设置... 10
2.4.2 单元格信息设置... 13
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What is the correct MIME type to use for an RSS feed?
... @KaiCarver I've been working on a new project built with ASP.NET Core 3.1 Web API + Angular 9. I needed to generate an RSS feed and when comparing the output to other websites, I realized the correct Content-Type to use is text/xml. However the HTML content in the description nodes were being e...
Calling a function of a module by using its name (a string)
... after my comment. ;) In the 3.x branch, the module has been around since 3.1. 2.7 and 3.1 are now pretty ancient; you'll still find servers hanging around that only support 2.6, but it's probably worth having importlib be the standard advice nowadays.
– Xiong Chiamiov
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In Rails, how do you render JSON using a view?
...are other solutions, both seem somewhat outdated and won't work with Rails 3.1 without some patching.
RABL is available via a gem or check out the GitHub repository; good examples too
https://github.com/nesquena/rabl
shar...
How do you unit test a Celery task?
...GER', True, create=True):
...
Docs: http://docs.celeryproject.org/en/3.1/configuration.html#celery-always-eager
CELERY_ALWAYS_EAGER lets you run your task synchronous, and you don't need a celery server.
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Tri-state Check box in HTML?
...7. Regarding mobile browsers, Android 2.0 browser and Safari mobile on iOS 3.1 don't have support for it.
Previous answer
Another alternative would be to play with the checkbox transparency
for the "some selected" state (as Gmail does used to
do in previous versions). It will require some ...
BeanFactory vs ApplicationContext
...ed in struts-config.xml.
Note: XmlBeanFactory is deprecated as of Spring 3.1 in favor of DefaultListableBeanFactory and XmlBeanDefinitionReader.
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Plot two histograms on single chart with matplotlib
...histogram to be normalized (normed for mpl<=2.1 and density for mpl>=3.1) you cannot just use normed/density=True, you need to set the weights for each value instead:
import numpy as np
import matplotlib.pyplot as plt
x = np.random.normal(1, 2, 5000)
y = np.random.normal(-1, 3, 2000)
x_w = n...
Android Studio inline compiler showing red errors, but compilation with gradle works fine
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worked very well in A.S. 3.1.3. I didn't even need to invalidate caches. Let's hope A.S. will build faster now !
– Someone Somewhere
Jun 14 '18 at 14:35
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