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App Inventor 2 颜色代码块 · App Inventor 2 中文网
...olor 属性设置为特定数字来指定你想要的颜色。 如果你想查看颜色与数字的图表，请查看此页面。
基本颜色
这是一个基本色块。 它有一个小正方形形状，中间有一个颜色，代表该块内部存储的颜色。
如果单击中间的颜色...
App Inventor 2 PDF文档预览 · App Inventor 2 中文网
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预览PDF文档的方式
你可以使用Activity启动器查看已存储在你的设备上的 pdf 文档，也可以使用Web客户端通过网址URL打开 pdf 文档。
App Inventor 2 可以使用 .pdf 扩展名从程序包资产中查看 pdf 文件，不再需要外部 pdf 查看...
Best practices for adding .gitignore file for Python projects? [closed]
...ritten by a python script from a template
# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
*.spec
# Installer logs
pip-log.txt
pip-delete-this-directory.txt
# Unit test / coverage reports
htmlcov/
.tox/
.coverage
.coverage.*
.cache
nosetests.xml
coverage.x...
可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...变量以外不依赖于任何环境（包括static），这样的函数就是purecode（纯代码）可重入，可以允许有该函数的多个副本在运行，由于它们使用的是分离的栈，所以不会互相干扰。一、可重入(reentrance)函数：
首先来看下APUE中，列出...
How do you Encrypt and Decrypt a PHP String?
...d, $keysize = \Sodium\CRYPTO_SECRETBOX_KEYBYTES)
– Alexey Ozerov
Dec 29 '16 at 18:18
1
...
Tool for comparing 2 binary files in Windows [closed]
...iles are identical, you can use the Windows fc command in binary mode:
fc.exe /b file1 file2
For details, see the reference for fc
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How to uninstall a Windows Service when there is no executable for it left on the system?
How do I uninstall a Windows Service when there is no executable for it left on the system? I can not run installutil -u since there is not executable left on the system. I can still see an entry for the service in the Services console.
...
I need to securely store a username and password in Python, what are my options?
...t itself to read them, and if the script itself was compiled and marked as executable only (not readable). Some of that could be automated, but I haven't bothered. It would probably require setting up a user for the script and running the script as that user (and setting ownership of the script's fi...
Compiling simple Hello World program on OS X via command line
...
Why a.out? In windows I expect to see a.exe. In *nix we don't need extensions. Why use .out over no extension? a is a weird default name too.
– P.Brian.Mackey
Mar 5 '15 at 3:58
...
Script entire database SQL-Server
...orts scripting both schema and data.
To generate scripts run:
schemazen.exe script --server localhost --database db --scriptDir c:\somedir
Then to recreate the database from scripts run:
schemazen.exe create --server localhost --database db --scriptDir c:\somedir
...