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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...Lite 功能类似，但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语言）数据库引擎。
SQL 语句用于创建、选择、更新和删除一个...
How to sum all the values in a dictionary?
...
phihag's answer (and similar ones) won't work in python3.
For python 3:
d = {'key1': 1,'key2': 14,'key3': 47}
sum(list(d.values()))
Update!
There are complains that it doesn't work! I just attach a screenshot from my terminal. Could be some mismatch in versions etc.
...
CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，自定义一个类似CGridCellCheck的单元格类。
本文源码下载：GridCtrl.rar
源doc文档下载：MFCGridCtrl控件_使用心得.doc
MFC Grid control相关介绍及完整Demo下载：MFC Grid control 2.27
MFC Grid CGRidCtrl
How to update Python?
...s to point to dominant (e.g. 2.7), shortcut to other (e.g. in BASH $ ln /c/Python33/python.exe python3).
The answer depends:
If OP has 2.7.x and wants to install newer version of 2.7.x, then
if using MSI installer from the official Python website, just install over old version, installer will ...
How do you extract a column from a multi-dimensional array?
...
I can't find any documentation for arange() in Python3 outside of numpy. Anyone?
– Kevin W Matthews
Aug 17 '19 at 21:45
add a comment
...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...一篇关于AT&T的汇编入门文章)
3.2 如何安装NASM？
下载地址：http://www.nasm.us/
可以下载源码包或者rpm包，rpm –iUh *.rpm
四、Linux汇编介绍
4.1 DOS和Linux汇编主要不同的地方
DOS汇编中，大部分工作依靠21号中断(int ...
Loop backwards using indices in Python?
...are multiple ways.
Better Way
For pythonic way, check PEP 0322.
This is Python3 pythonic example to print from 100 to 0 (including 100 & 0).
for i in reversed(range(101)):
print(i)
share
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...
Why doesn't print work in a lambda?
... a SyntaxError, python doesn't let you assign a value to print in 2.xx; in python3 you could say
lambda: print('hi')
and it would work because they've changed print to be a function instead of a statement.
share
...
numpy matrix vector multiplication [duplicate]
...r Solutions
Also know there are other options:
As noted below, if using python3.5+ the @ operator works as you'd expect:
>>> print(a @ b)
array([16, 6, 8])
If you want overkill, you can use numpy.einsum. The documentation will give you a flavor for how it works, but honestly, I didn't...
【解决】Python：ModuleNotFoundError: No module named \'google.protobuf...
...入dist-packages目录，刷新__init__.py文件：
cd /usr/local/lib/python3/dist-packages
touch google/__init__.py
参考资料：https://stackoverflow.com/questions/38680593/importerror-no-module-named-google-protobuf
python,protobuf