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How can I convert JSON to a HashMap using Gson?
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With google's Gson 2.7 (probably earlier versions too, but I tested with the current version 2.7) it's as simple as:
Map map = gson.fromJson(jsonString, Map.class);
Which returns a Map of type com.google.gson.internal.LinkedTreeMap and works...
20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...最常用的20个命令行系统监视工具。这些命令可以在所有版本的 Linux 下使用去监控和查找系统性能的实际原因。这些监控命令足够你选择适合你的监控场景。
1. top —Linux系统进程监控
top 命令是性能监控程序，它可以在很多 Lin...
传感器组件 · App Inventor 2 中文网
...动，也不会触发任何事件。
兼容模式
在添加此属性的版本之前，加速度传感器 组件直接传递从 Android 系统接收到的传感器值。然而，这些值无法补偿默认为横向模式的平板电脑，需要 MIT App Inventor 程序员进行补偿。但是，...
How to include package data with setuptools/distribute?
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"Changed in version 2.7: All the files that match package_data will be added to the MANIFEST file if no template is provided. See Specifying the files to distribute." from distutils. So, you'll only see the behaviour of files in package_data bei...
Pandas - Get first row value of a given column
...bar'].iloc[0] = 99
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pandas-0.16.0_19_g8d2818e-py2.7-macosx-10.9-x86_64.egg/pandas/core/indexing.py:118: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame
See the the caveat...
Convert Python program to C/C++ code? [closed]
... for the Python interpreter and compiles every construct that CPython 2.6, 2.7, 3.2 and 3.3 offer. It translates the Python into a C++ program that then uses "libpython" to execute in the same way as CPython does, in a very compatible way."
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In Ruby, is there an Array method that combines 'select' and 'map'?
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Ruby 2.7+
There is now!
Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i...
str performance in python
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Of course the above is true for the system I tested on (CPython 2.7); other implementations may differ.
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Implement touch using Python?
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On Python2.7: pip install pathlib
– Andre Miras
Oct 24 '17 at 17:54
8
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Convert string in base64 to image and save on filesystem in Python
...using the base64 codec, and then write it to the filesystem.
# In Python 2.7
fh = open("imageToSave.png", "wb")
fh.write(img_data.decode('base64'))
fh.close()
# or, more concisely using with statement
with open("imageToSave.png", "wb") as fh:
fh.write(img_data.decode('base64'))
Modernizing ...