再来一个开源倒计数组件  :stuck_out_tongue_winking_eye: 

同理，flutter reactNative 也是一样的

devcontainer.json

```yaml
// For format details, see https://aka.ms/devcontainer.json. For config options, see the
// README at: https://github.com/devcontainers/templates/tree/main/src/ubuntu
{
	"name": "Fei-Dev",
	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
	"dockerComposeFile": "../docker-dev-build/docker-compose.yml",
	"service": "devcontainer",
	"workspaceFolder": "/workspace",
	"features": {
		"ghcr.io/devcontainers/features/java:1": {},
		"ghcr.io/nordcominc/devcontainer-features/android-sdk:1": {}
	},
	"customizations": {
		"vscode": {
			"extensions": [
				"DavidAnson.vscode-markdownlint",
				"isudox.vscode-jetbrains-keybindings",
				"vscjava.vscode-gradle",
				"totalcross.android-xml-editor",
				"ms-azuretools.vscode-docker",
				"adelphes.android-dev-ext",
				"fwcd.kotlin"
			]
		}
	},
	"shutdownAction": "stopCompose",

	// Use 'forwardPorts' to make a list of ports inside the container available locally.
	// "forwardPorts": [],
	// Use 'postCreateCommand' to run commands after the container is created.
	"postCreateCommand": "adb start-server && sh gradlew build",
	// "postAttachCommand": "adb connect emulator:5555"
	// Configure tool-specific properties.
	// "customizations": {},
	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
	//fixme 尝试使用vscode 用户可以访问volume
	"remoteUser": "root"
}
```

docker-compose.yml

```
services:
  devcontainer:
    image: mcr.microsoft.com/devcontainers/base:ubuntu
    command: /bin/sh -c "while sleep 1000; do :; done"
    ports: 
      - "8080-8090"
    volumes:
      - ..:/workspace:cached
      - gradle-cache:/root/.gradle
      - top-cache:/root/.cache

  emulator:
    image: budtmo/docker-android:emulator_11.0
    ports:
      - "6080"
    environment:
      - EMULATOR_DEVICE=Samsung Galaxy S10
      - WEB_VNC=true
    devices:
      - /dev/kvm

volumes:
  gradle-cache:
  top-cache:
```



分享在docker 里面开发Android 项目

有谁会写毕设

标识符

483DAB9E-B587-4DAE-936C-201F5BC4BCBA

备注

Error Domain=kCFStreamErrorDomainSSL Code=-9806"(null)" UserInfo=/NSLocalizedRecoverySuggestion=Errorcode definition can be found in Apple's SecureTransport.h}

请求信息

CONNECT m.m******(手动打码).pt:443 HTTP/1.1

请求头部

Host: m.m*******.ptConnection: keep-alive

发送请求头部

未发送

服务端开始响应

未响应

请求完成2024/04/26 10:11:40.529

 app无法登录，抓包数据。网页版可以登录，求分析求解

前些天一直在找便宜的云服务器，偶然间发现一免费的云平台，这里推荐给大家。

就是阿贝云，网站是https://www.abeiyun.com

说一下感受

1、阿贝云虽然是一小众的云平台，重在免费，该有的东西都有，还能免备案这是最舒服的。

2、使用了一天，上了项目，网速不慢。

3、唯一要指出来就是磁盘太小。

分享免费云服务器

拉取了rustbuster的v3.0.3版本文件, 二进制文件无法使用, 执行结果如下:

```bash
[root_cn@archlinux target]$ ./rustbuster-v3.0.3-x86_64-unknown-linux-gnu
./rustbuster-v3.0.3-x86_64-unknown-linux-gnu: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory
```

拉取了main源码, 想自行尝试编译, 然后卡在了openssl, 以下为报错信息:

```rust
The following warnings were emitted during compilation:

warning: openssl-sys@0.9.47: build/expando.c:4:24: error: pasting "RUST_VERSION_OPENSSL_" and "(" does not give a valid preprocessing token
warning: openssl-sys@0.9.47:     4 | #define VERSION2(n, v) RUST_VERSION_##n##_##v
warning: openssl-sys@0.9.47:       |                        ^~~~~~~~~~~~~
warning: openssl-sys@0.9.47: build/expando.c:5:23: note: in expansion of macro ‘VERSION2’
warning: openssl-sys@0.9.47:     5 | #define VERSION(n, v) VERSION2(n, v)
warning: openssl-sys@0.9.47:       |                       ^~~~~~~~
warning: openssl-sys@0.9.47: build/expando.c:10:1: note: in expansion of macro ‘VERSION’
warning: openssl-sys@0.9.47:    10 | VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
warning: openssl-sys@0.9.47:       | ^~~~~~~

error: failed to run custom build command for `openssl-sys v0.9.47`

Caused by:
  process didn't exit successfully: `/mnt/d/work/file/rust/rustbuster/target/debug/build/openssl-sys-c5a482a9e0e49574/build-script-main` (exit status: 101)
  --- stdout
  cargo:rustc-cfg=const_fn
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_LIB_DIR
  OPENSSL_LIB_DIR unset
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_INCLUDE_DIR
  OPENSSL_INCLUDE_DIR unset
  cargo:rerun-if-env-changed=X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR
  X86_64_UNKNOWN_LINUX_GNU_OPENSSL_DIR unset
  cargo:rerun-if-env-changed=OPENSSL_DIR
  OPENSSL_DIR unset
  cargo:rustc-link-lib=ssl
  cargo:rustc-link-lib=crypto
  OPT_LEVEL = Some("0")
  TARGET = Some("x86_64-unknown-linux-gnu")
  HOST = Some("x86_64-unknown-linux-gnu")
  CC_x86_64-unknown-linux-gnu = None
  CC_x86_64_unknown_linux_gnu = None
  HOST_CC = None
  CC = None
  CFLAGS_x86_64-unknown-linux-gnu = None
  CFLAGS_x86_64_unknown_linux_gnu = None
  HOST_CFLAGS = None
  CFLAGS = None
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
  running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-E" "build/expando.c"
  cargo:warning=build/expando.c:4:24: error: pasting "RUST_VERSION_OPENSSL_" and "(" does not give a valid preprocessing token
  cargo:warning=    4 | #define VERSION2(n, v) RUST_VERSION_##n##_##v
  cargo:warning=      |                        ^~~~~~~~~~~~~
  cargo:warning=build/expando.c:5:23: note: in expansion of macro ‘VERSION2’
  cargo:warning=    5 | #define VERSION(n, v) VERSION2(n, v)
  cargo:warning=      |                       ^~~~~~~~
  cargo:warning=build/expando.c:10:1: note: in expansion of macro ‘VERSION’
  cargo:warning=   10 | VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
  cargo:warning=      | ^~~~~~~
  exit status: 1

  --- stderr
  thread 'main' panicked at /home/root_cn/.cargo/registry/src/mirrors.sjtug.sjtu.edu.cn-4f7dbcce21e258a2/openssl-sys-0.9.47/build/main.rs:126:13:

  Header expansion error:
  Error { kind: ToolExecError, message: "Command \"cc\" \"-O0\" \"-ffunction-sections\" \"-fdata-sections\" \"-fPIC\" \"-g\" \"-fno-omit-frame-pointer\" \"-m64\" \"-Wall\" \"-Wextra\" \"-E\" \"build/expando.c\" with args \"cc\" did not execute successfully (status code exit status: 1)." }

  Failed to find OpenSSL development headers.

  You can try fixing this setting the `OPENSSL_DIR` environment variable
  pointing to your OpenSSL installation or installing OpenSSL headers package
  specific to your distribution:

      # On Ubuntu
      sudo apt-get install libssl-dev
      # On Arch Linux
      sudo pacman -S openssl
      # On Fedora
      sudo dnf install openssl-devel

  See rust-openssl README for more information:

      https://github.com/sfackler/rust-openssl#linux

  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
```

经过检查openssl与rust均为最新版本, 

```bash
[root_cn@archlinux target]$ sudo pacman -S rust
[sudo] password for root_cn:
warning: rust-1:1.77.2-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Package (1)  Old Version  New Version  Net Change

extra/rust   1:1.77.2-1   1:1.77.2-1     0.00 MiB

Total Installed Size:  249.41 MiB
Net Upgrade Size:        0.00 MiB

:: Proceed with installation? [Y/n] n
[root_cn@archlinux target]$ sudo pacman -S openssl
warning: openssl-3.2.1-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Package (1)   Old Version  New Version  Net Change

core/openssl  3.2.1-1      3.2.1-1        0.00 MiB

Total Installed Size:  11.45 MiB
Net Upgrade Size:       0.00 MiB

:: Proceed with installation? [Y/n] n
```

在网上找了一下, 查到资料, 在[rust-openssl的issues](https://github.com/sfackler/rust-openssl/issues/1227)中提到类似报错, 得到解释如下:

> If you are cross compiling to MUSL, you either need to point openssl-sys to the location that you have a copy of OpenSSL cross compiled to MUSL, or tell it to build a copy of OpenSSL itself with the vendored feature.
>
>	如果你是交叉编译到MUSL，你需要将openssl-sys指向你有一个交叉编译到MUSL的OpenSSL副本的位置，或者告诉它用vendored特性构建一个OpenSSL本身的副本。

由于不会rust, 依靠关键词"交叉编译"+"cargo"搜索到了[cargo交叉编译rust程序](https://blog.csdn.net/tyc880616/article/details/104371502), 顺着找到文件:

```
[root_cn@archlinux .cargo]$ cat ~/.cargo/config
[source.crates-io]
replace-with = 'sjtu' # 指定使用下面哪个源，修改为source.后面的内容即可

# 中国科学技术大学
[source.ustc]
registry = "https://mirrors.ustc.edu.cn/crates.io-index"

# 上海交通大学
[source.sjtu]
registry = "https://mirrors.sjtug.sjtu.edu.cn/git/crates.io-index/"

# 清华大学
[source.tuna]
registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"

# rustcc社区
[source.rustcc]
registry = "https://code.aliyun.com/rustcc/crates.io-index.git"
```

没有找到交叉编译的设置, 由于本人不会rust, 线索断了, 尝试向大家寻求一波帮助, 非常感谢阅读.



急切寻求rust编译问题帮助(archlinux, openssl)

永久免费，无需注册

[https://good.xjai.top](https://good.xjai.top)

分享免费GPT4站点

[MoienTajik/AspNetCore-Developer-Roadmap (github.com)](https://github.com/MoienTajik/AspNetCore-Developer-Roadmap/blob/master/ReadMe.zh-Hant.md)

![](https://github.com/MoienTajik/AspNetCore-Developer-Roadmap/raw/master/aspnetcore-developer-roadmap.zh-Hant.png)



【轉貼】ASP.NET Core Developer Roadmap in 2024

![](https://content.hackertalk.net/pub/agmJ9d-7kZmDxy)

（大学时期加入的协会）

有同学发[帖子](https://hackertalk.net/posts/317200937748385792)提到这个问题，想必很多人也很好奇，我就简单讲一下。

### 为什么有这个网站？

我是一个比较 hack 的人，喜欢捣鼓各种技术，以前硬件玩的比较多（数字、模拟、射频都有），现在做的都是软件相关。这个过程中我就发现交流是非常重要的，即使能力很强也不能闭门造车，特别是技术选型，选错了会走很多弯路，充分交流能够暴露各种技术栈的优缺点，在毕业之后，交流途径更少了，我尝试在网上寻找交流的渠道，但都无法匹配我的需求：实时性、优质垂直内容、良好体验、开放公平。

* CSDN：大量抄袭、低质内容、界面体验差
* 掘金、SF：长内容质量不错，但缺少实时交流渠道（只能发站内信）
* 知乎：长内容质量高、功能丰富，但人群&内容泛化，不够垂直定制 & 实时
* v2ex：短内容质量高、垂直度高，但 UI 体验不够好，导致很多丰富功能无法拓展

于是打算自己实现一个短内容平台，就像黑客说的口号一样：技术驱动优质交流。

### 如何的实现？

做技术的时候我不会去考虑我会不会的问题，我只分析可行性，然后挑战实现过程的每个困难，我觉得 web 更加开放、公平，那就用 web 技术栈；我觉得编辑器能够明显改善用户体验，那我就去实现（编辑器开发是前端 top3 的难题）；大量广告会影响用户体验那就砍掉（只留一个做统计分析）；用户设备种类多，那就去实现 UI 全端兼容、多点登录、数据同步（目前支持同一账号 5 个设备同时登录、同时聊天）。

![](https://content.hackertalk.net/pub/3VvBpW-adE7zkp)

（大二做的一个信号发生器，带一个椭圆滤波）

各种框架、编程语言本质都是工具，都有优缺点，不要限制自己，python 适合数据分析，react 更灵活、Java 在 web 后端生态更丰富、golang 更加轻量、优雅，nodejs serverless 友好，只用这些技术好的一面，不求强行推到各个领域。如果按这个的思路去解决问题，你会发现做出来的东西会优于现有产品。

### 如何盈利？

软件盈利方式本质只有几种：广告收入、服务收入、电子商务。

**广告收入** ：目前广告在 web 端基本是凉了（大陆范围），用户普遍对广告反感，点击率和点击单价都低，英文站点会好一点，黑客说不会把这个当作主要盈利方式，目标能够支持网站的基本运营即可，如果影响用户体验则砍掉。

**服务收入** ：这种是后续主要的盈利方式，如 docker 企业私有化部署版本、第三方服务对接等、模块拆分、想象空间比较大。这种方式可以兼顾大部分人的使用体验的同时实现盈利，但前提是社区要能够做起来（目前比较困难，希望大家多多支持）。

**电子商务** ：无计划。