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jQuery控制图片的hover效果，不能通过css设置img的src属性 - 更多技术 - 清...
...属性。用jQuery控制图片的hover效果可以实现，代码如下：<script type="text javascript"> $(function 貌似不能通过css设置img的src属性。用jQuery控制图片的hover效果可以实现，代码如下：
<script type="text/javascript">
$(function() {
var...
js/php判断终端类型：PC访问、手机访问、微信访问 - 更多技术 - 清泛网 - ...
...访问一般也可以在前端用js来判断访问终端，代码如下：<script>function GetQueryString(name) { var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); v 一般也可以在前端用js来判断访问终端，代码如下：
<script>
function GetQueryString(name) {
...
How to resize an image to fit in the browser window?
...
Update 2018-04-11
Here's a Javascript-less, CSS-only solution. The image will dynamically be centered and resized to fit the window.
<html>
<head>
<style>
* {
margin: 0;
padding: 0;
}
....
How to install pip with Python 3?
... manual way, the now-recommended method is to install using the get-pip.py script from pip's installation instructions.
Install pip
To install pip, securely download get-pip.py
Then run the following (which may require administrator access):
python get-pip.py
If setuptools is not already installe...
JSON: why are forward slashes escaped?
..."A", but it's not required. Allowing \/ helps when embedding JSON in a <script> tag, which doesn't allow </ inside strings, like Seb points out.
Some of Microsoft's ASP.NET Ajax/JSON API's use this loophole to add extra information, e.g., a datetime will be sent as "\/Date(milliseconds)\/"...
Peak memory usage of a linux/unix process
...
Here's a one-liner that doesn't require any external scripts or utilities and doesn't require you to start the process via another program like Valgrind or time, so you can use it for any process that's already running:
grep VmPeak /proc/$PID/status
(replace $PID with the PI...
Why is printing to stdout so slow? Can it be sped up?
...term and got significantly better results. Below is the output of my test script (at the bottom of the question) when running in wterm at 1920x1200 in on the same system where the basic print option took 12s using gnome-terminal:
-----
timing summary (100k lines each)
-----
print ...
Convert a Git folder to a submodule retrospectively?
... proceeding!
The following bash snippets can be concatenated into one big script which should then be executed in the same folder where the repo repo-org lives. It is not recommended to copy and paste everything directly into a command window (even though I have tested this successfully)!
0. Prepa...
Extract file name from path, no matter what the os/path format
....basename as others suggest won't work in all cases: if you're running the script on Linux and attempt to process a classic windows-style path, it will fail.
Windows paths can use either backslash or forward slash as path separator. Therefore, the ntpath module (which is equivalent to os.path when ...
Scroll to a div using jquery
...om CSS positioning.
Once we get x & y cordinates, then we can use javascript's scrollTo(); method. This method scrolls the document upto specific height & width. It takes two parameters as x & y cordinates. Syntax : window.scrollTo(x,y);
Then just pass the x & y cordinates of the...