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Floating View 扩展：悬浮视图扩展，将组件转换为悬浮窗口 · App Inventor 2 中文网
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使用说明
基本使用步骤
重要提示
性能优化建议
技术说明
悬浮窗口原理
边距设置
动画效果
常见问题
Q: 悬浮窗不显...
How can I count the occurrences of a list item?
... very late to the party but wouldn't following code throw an error if a list contained more than one instance of i, because it will try to enter multiple keys of same value in a dictionary. dict((i, a.count(i)) for i in a)
– rp1
Sep 16 '19 a...
Create an empty list in python with certain size
...nately if you want to create a list-of-lists you will run into referencing errors. Example in Python 2.7.6:
>>> a = [[]]*10
>>> a
[[], [], [], [], [], [], [], [], [], []]
>>> a[0].append(0)
>>> a
[[0], [0], [0], [0], [0], [0], [0], [0], [0], [0]]
>>>
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CodeIgniter removing index.php from url
...index.php/about-us and domain.com/index.php?/about-us which generating SEO error i.e duplicate title tag and duplicate meta description
– Musaddiq Khan
Jun 26 '14 at 12:35
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Redirect all to index.php using htaccess
...ackResource directive
FallbackResource /index.php
It works same as the ErrorDocument , when you request a non-existent path or file on the server, the directive silently forwords the request to index.php .
If you want to redirect everything (including existant files or folders ) to index.php ,...
How to remove item from array by value? [duplicate]
...is can be a global function or a method of a custom object, if you aren't allowed to add to native prototypes. It removes all of the items from the array that match any of the arguments.
Array.prototype.remove = function() {
var what, a = arguments, L = a.length, ax;
while (L && th...
Drawing Isometric game worlds
...loop with fairly straight forward logic that works consistently throughout all tiles.
Disadvantage:
One downside to that approach is that the x and y coordinates of the tiles on the map will increase in diagonal lines, which might make it more difficult to visually map the location on the screen t...
Print a string as hex bytes?
... Note that in python3, the concept of printing a str as hex doesn't really make sense; you'll want to print bytes object as hex (convert str to bytes by calling .encode()).
– mic_e
May 8 '15 at 12:53
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FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
...操作按钮
4. 滚动时隐藏/显示
5. 临时操作提示
6. 动态按钮组
使用说明
基本使用步骤
重要提示
最佳实践
技术说明
尺寸规范
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tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...逐渐成为了业界关注之一。
目标
提高单台机器的新建连接并发能力， 减少访问延时， 提高网络带宽利用率。
单边加速
需要明确的是，本文的目标是tcp加速，目标场景是web server， 而不是路由设备
在峰值带宽的情况下，网...