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Detecting iOS / Android Operating system
I've done some research, and this question has come up, but not in the way I intend. I'm building a page for a client that is a QR code landing, which is a place to download an application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
... App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前端页面
CustomWebView 拓展
属性
事件
方法
BrowserPromptHelper
属性
事件
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Parsing command-line arguments in C?
... character by character in C. It has to be able to read in command line options -l -w -i or -- ...
12 Answers
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Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...ocker.service
# 在文件中添加一下内容：
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecRe...
社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...我们看一下用java程序如何来实现这一过程。
import java.io.IOException;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
...
Simplest way to detect a mobile device in PHP
...d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|...
Detect iPad users using jQuery?
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iPad Detection
You should be able to detect an iPad user by taking a look at the userAgent property:
var is_iPad = navigator.userAgent.match(/iPad/i) != null;
iPhone/iPod Detection
Similarly, the platform property to check for devi...
How to copy files from 'assets' folder to sdcard?
...iles = null;
try {
files = assetManager.list("");
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
if (files != null) for (String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
...
据说智商高的人都这样设密码... - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...能搞太复杂，最后连自己都忘了。大多数人会选用自己或伴侣、家人、朋友的生日...密码，一个私密又纠结的东西。既不能设太简单让别人知道，又不能搞太复杂，最后连自己都忘了。
大多数人会选用自己或伴侣、家人、朋...
通过FastCGI Cache实现服务降级 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...到的都是Nginx缺省包含的功能，我们可以看作是一个通用版，不过对照我们架构图中的目标就会发现：它没有实现全局激活缓存的功能。如何实现呢？最简单的方法就是通过单位时间内出错次数的多少来判断系统健康以否，设置...