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How set background drawable programmatically in Android
...nother way to achieve it is to use the following:
final int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
layout.setBackgroundDrawable(ContextCompat.getDrawable(context, R.drawable.ready) );
} else {
layout.setBackground(ContextCompat.getDr...
Call a function from another file?
...to do with Python 3, or is a general problem?
– DarkRose
Jun 29 '15 at 7:02
7
@GamesBrainiac, wha...
多媒体组件 · App Inventor 2 中文网
...本、iOS 11 或更高版本。要求AI伴侣v2.68及以上。
属性
操作
设置 文件选择器 所需的操作。有如下选项：
选择现有文件：打开现有文件
选择目录：打开现有目录
选择新文件：创建一个新文件进行保存
...
Difference between core and processor
...on order, and performing the operations through ALUs. For optimization purposes, a core can also hold on-core caches with copies of frequently used memory chunks.
A CPU may have one or more cores to perform tasks at a given time. These tasks are usually software processes and threads that the OS s...
How to convert An NSInteger to an int?
...ore than a 32/64 bit int. (it will use the appropriate size based on what OS/platform you're running)
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How to select a CRAN mirror in R
...
You should either get a window with a list of repositories or a text menu with some options. But if that is not appearing, you can always specify the mirror from where to download the packages yourself by using repos parameter. By doing that, R will not ask you anymore abou...
How to read a (static) file from inside a Python package?
...oesn't work in all situations. please refer to the other answers]
import os, mypackage
template = os.path.join(mypackage.__path__[0], 'templates', 'temp_file')
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process.env.NODE_ENV is undefined
...
To set an environment variable in Windows:
SET NODE_ENV=development
on OS X or Linux:
export NODE_ENV=development
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Is it OK to leave a channel open?
Is it OK to leave a Go channel open forever (never close the channel) if I never check for its state? Will it lead to memory leaks? Is the following code OK?
...
快速理解 高频对冲套利自动交易（程式化交易） - 更多技术 - 清泛网 - 专注...
...，成为智能化全自动交易；
以我实盘交易为例，我同时操作3个账户，用了2台电脑，因为一些原因，我需要在8点59分到9点之间，那1分钟时间里，发出多笔报单，原来，我用人工的方式，手忙脚乱，每一单，都有6个参数需要填...