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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
... 下载链接
扩展文件：
aryan.gupta.GesturesDetector.aix
demo:
DetectGesture.aia
功能概述
扩展特性
多种手势识别：支持上滑、下滑、左滑、右滑、双击、单击和长按
简单易用：只需将布...
Get yesterday's date in bash on Linux, DST-safe
...
Here a solution that will work with Solaris and AIX as well.
Manipulating the Timezone is possible for changing the clock some hours.
Due to the daylight saving time, 24 hours ago can be today or the day before yesterday.
You are sure that yesterday is 20 or 30 hours ago...
Shell Script — Get all files modified after
...
This is awesome... I could only get it to work with bzip, not using -xcvf and a gz extension... but I'm no expert.
– phil
Apr 21 '17 at 3:38
add a commen...
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
...ssary, uninstall the Windows service altogether. For development, just the ZIP file is sufficient.
Or if your actual intent is to run two instances of Tomcat simultaneously, then you have to configure the second instance to listen on different ports. Consult the Tomcat documentation for more detail...
Ubuntu, vim, and the solarized color palette
...tall the solarized vim colorscheme on Ubuntu:
sudo apt-get install wget unzip curl
cd
wget http://ethanschoonover.com/solarized/files/solarized.zip
unzip solarized.zip
mkdir .vim
mkdir .vim/colors/
mv solarized/vim-colors-solarized/colors/solarized.vim ~/.vim/colors/
cp .vimrc .vimrc.old
echo "synt...
JavaScript implementation of Gzip [closed]
...ng/index.html (Thanks to pieroxy in the comments).
I don't know of any gzip implementations, but the jsolait library (the site seems to have gone away) has functions for LZW compression/decompression. The code is covered under the LGPL.
// LZW-compress a string
function lzw_encode(s) {
var d...
Reusable library to get human readable version of file size?
...an the answers here that use a for-loop.
from math import log
unit_list = zip(['bytes', 'kB', 'MB', 'GB', 'TB', 'PB'], [0, 0, 1, 2, 2, 2])
def sizeof_fmt(num):
"""Human friendly file size"""
if num > 1:
exponent = min(int(log(num, 1024)), len(unit_list) - 1)
quotient = fl...
Download data url file
I'm playing with the idea of making a completely JavaScript-based zip/unzip utility that anyone can access from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
...
Open a link in browser with java button? [duplicate]
...nix()
{
return OS.contains("nix") || OS.contains("nux") || OS.indexOf("aix") > 0;
}
Then we can call this helper from the instance:
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
MUtils.openURL("www.google.com"); // just what is the...
总结const_cast、static_cast、dynamic_cast、reinterpret_cast - C/C++ - ...
...以转换任意一个32bit整数，包括所有的指针和整数。可以把任何整数转成指针，也可以把任何指针转成整数，以及把指针转化为任意类型的指针，威力最为强大！但不能将非32bit的实例转成指针。总之，只要是32bit的东东，怎么转...