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How to get image height and width using java?
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Here is something very simple and handy.
BufferedImage bimg = ImageIO.read(new File(filename));
int width = bimg.getWidth();
int height = bimg.getHeight();
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How can I make a time delay in Python? [duplicate]
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import time
time.sleep(5) # Delays for 5 seconds. You can also use a float value.
Here is another example where something is run approximately once a minute:
import time
while True:
print("This prints once a minute.")...
appinventor2 视频播放器如何将媒体源设置为指向流式视频的 URL？ - App应...
...文件
离线工作
还有更多功能即将推出。
拓展地址：https://bbs.tsingfun.com/thread-1719-1-1.html
multiprocessing: How do I share a dict among multiple processes?
...lves using a Manager object. Adapted from the docs:
from multiprocessing import Process, Manager
def f(d):
d[1] += '1'
d['2'] += 2
if __name__ == '__main__':
manager = Manager()
d = manager.dict()
d[1] = '1'
d['2'] = 2
p1 = Process(target=f, args=(d,))
p2 = Proce...
How does functools partial do what it does?
...)
Of those three, partial is the shortest and the fastest.
(For a more complex case you might want a custom object though).
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linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ROUTING -i eth0 -s 192.168.0.0/16 -j DROP
如果我们想,比如阻止MSN,QQ,BT等的话,需要找到它们所用的端口或者IP,(个人认为没有太大必要)
例：
禁止与211.101.46.253的所有连接
[root@tp ~]# iptables -t nat -A PREROUTING -d 211.101.46.253 -j DROP
禁...
How to escape single quotes within single quoted strings
...me. The steps would be:
s/'/'\\''/g # Handle each embedded quote
$_ = qq['$_']; # Surround result with single quotes.
This pretty much takes care of all cases.
Life gets more fun when you introduce eval into your shell-scripts. You essentially have to re-quotify everything again!
For exampl...
Displaying files (e.g. images) stored in Google Drive on a website
... is to get the fileId with Google Drive SDK API and then using this Url:
https://drive.google.com/uc?export=view&id={fileId}
That will be a permanent link to your file in Google Drive (image or anything else).
Note: this link seems to be subject to quotas. So not ideal for public/massive sh...
css中使用变量，:root伪元素的使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...DN博客
跟着官网学习vue3 ，class style的绑定，使用cs变量
https://blog.csdn.net/qq_17335549/article/details/126669483
2. 设置主题色
我遇到的关于root伪元素的应用，一个很典型的例子就是主题色的设置，项目中可以能需要增加两套主题色...
App Inventor 2 天气预报App开发 - 第三方API接入的通用方法 · App Inventor 2 中文网
...的key。
请求示例：北京7天预报
curl -L -X GET --compressed 'https://api.qweather.com/v7/weather/7d?location=101010100&key=YOUR_KEY'
第三方API的调用
使用”Web客户端“组件调用第三方API，代码如下：
JSON结果的解析
请求成功返回JSON示例
{
"code...