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| use std::collections::HashMap; | ||
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| fn main() { | ||
| let res = tow_sum(vec![3,2,4], 6); | ||
| println!("{:?}", res); | ||
| } | ||
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| fn tow_sum(nums:Vec<i32>, target: i32) -> Vec<i32> { | ||
| let mut map = HashMap::new(); | ||
| for (i,v) in nums.iter().enumerate() { | ||
| let rem = target - v; | ||
| if let Some(j) = map.get(&rem) { | ||
| return vec![i as i32,*j]; | ||
| } | ||
| map.insert(v, i as i32); | ||
| } | ||
| vec![] | ||
| } |
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| --- | ||
| title: rust安装使用 | ||
| subtitle: | ||
| date: 2024-08-17T22:05:52+08:00 | ||
| slug: ca1d32f | ||
| draft: false | ||
| comment: true | ||
| summary: | ||
| description: 在windows下安装rust。 | ||
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| keywords: | ||
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| message: # 密码输入框预设提示 | ||
| password: # 解锁密码 | ||
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| layout: # 布局归类：posts, archives, tags, categories等，文件分散在不同文件夹需要注明 | ||
| archives: | ||
| tags: ['rust'] | ||
| categories: ['rust'] | ||
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| author: | ||
| name: | ||
| link: | ||
| email: | ||
| avatar: | ||
| license: | ||
| repost: | ||
| enable: true | ||
| url: | ||
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| weight: 0 | ||
| hiddenFromHomePage: false | ||
| hiddenFromSearch: false | ||
| hiddenFromRss: false | ||
| hiddenFromRelated: false | ||
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| resources: | ||
| - name: featured-image | ||
| src: featured-image.jpg | ||
| - name: featured-image-preview | ||
| src: featured-image-preview.jpg | ||
| toc: true | ||
| math: true | ||
| lightgallery: true | ||
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| # See details front matter: https://fixit.lruihao.cn/documentation/content-management/introduction/#front-matter | ||
| --- | ||
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| <!--more--> | ||
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| ## windows下安装rust | ||
| ### 1. 安装前准备： | ||
| + [下载mingw64](https://github.com/niXman/mingw-builds-binaries/releases),下载后解压，`mingw64/bin/`目录加入环境变量 | ||
| + [下载rust_init.exe](https://www.rust-lang.org/tools/install) | ||
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| + Rust编译链工具安装目录修改： | ||
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| Rust需要安装两个东西，一个是rustup，一个是cargo。所以你需要设置两个环境变量来分别指定他们的安装目录。 | ||
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| 通过`RUSTUP_HOME`指定`rustup`的安装目录。 | ||
| 通过`CARGO_HOME`指定`cargo`的安装目录。 | ||
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| + 切换清华镜像,网络加速 | ||
| ```text | ||
| 配置加速安装地址: 直接从官方网站下载会很慢，改用国内镜像加速安装，设置以下`变量`，并一起加入`环境变量`： | ||
| RUSTUP_DIST_SERVER https://mirrors.tuna.tsinghua.edu.cn/rustup | ||
| RUSTUP_UPDATE_ROOT https://mirrors.tuna.tsinghua.edu.cn/rustup/rustup | ||
| ``` | ||
| + 配置镜像配置库镜像 | ||
| 在“C:\Users\用户名\”下创建“.cargo”文件夹，在文件夹内创建“config”文件，如下图： | ||
| ```text | ||
| [source.crates-io] | ||
| registry = “https://github.com/rust-lang/crates.io-index” | ||
| replace-with = ‘tuna’ | ||
| [source.tuna] | ||
| registry = https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git | ||
| ``` | ||
| ### 2. 安装开始： | ||
| + 打开预先下载好的[rust_init.exe](https://www.rust-lang.org/tools/install) ，按照安装提示操作。 | ||
| + 在弹出的命令窗中 选择2,回车，然后输入`stable-x86_64-pc-windows-gnu` | ||
| ```text | ||
| You can uninstall at any time with rustup self uninstall and | ||
| these changes will be reverted. | ||
| Current installation options: | ||
| default host triple: x86_64-pc-windows-msvc | ||
| default toolchain: stable (default) | ||
| profile: default | ||
| modify PATH variable: yes | ||
| 1) Proceed with standard installation (default - just press enter) | ||
| 2) Customize installation | ||
| 3) Cancel installation | ||
| >2 | ||
| I'm going to ask you the value of each of these installation options. | ||
| You may simply press the Enter key to leave unchanged. | ||
| Default host triple? [x86_64-pc-windows-msvc] | ||
| stable-x86_64-pc-windows-gnu 后续一直回车即可 | ||
| ``` | ||
| --- | ||
| ### 3. 安装完成，提示如下安装成功 | ||
| ``` | ||
| Rust is installed now. Great! | ||
|
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||
| To get started you may need to restart your current shell. | ||
| This would reload its PATH environment variable to include | ||
| Cargo's bin directory (D:\toolchains\Rust\.cargo\bin). | ||
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||
| Press the Enter key to continue. | ||
| ``` | ||
| ### 4. 验证安装是否成功 | ||
| ``` | ||
| rustc --version | ||
| cargo --version | ||
| ``` | ||
| ## 安装日志： | ||
| ```text | ||
| Rust Visual C++ prerequisites | ||
| Rust requires a linker and Windows API libraries but they don't seem to be | ||
| available. | ||
| These components can be acquired through a Visual Studio installer. | ||
| 1) Quick install via the Visual Studio Community installer | ||
| (free for individuals, academic uses, and open source). | ||
| 2) Manually install the prerequisites | ||
| (for enterprise and advanced users). | ||
| 3) Don't install the prerequisites | ||
| (if you're targeting the GNU ABI). | ||
| >2 | ||
| You can acquire the build tools by installing Microsoft Visual Studio. | ||
| https://visualstudio.microsoft.com/downloads/ | ||
| Check the box for "Desktop development with C++" which will ensure that the | ||
| needed components are installed. If your locale language is not English, | ||
| then additionally check the box for English under Language packs. | ||
| For more details see: | ||
| https://rust-lang.github.io/rustup/installation/windows-msvc.html | ||
| Install the C++ build tools before proceeding. | ||
| If you will be targeting the GNU ABI or otherwise know what you are | ||
| doing then it is fine to continue installation without the build | ||
| tools, but otherwise, install the C++ build tools before proceeding. | ||
| Continue? (y/N) | ||
| y | ||
| Welcome to Rust! | ||
| This will download and install the official compiler for the Rust | ||
| programming language, and its package manager, Cargo. | ||
| Rustup metadata and toolchains will be installed into the Rustup | ||
| home directory, located at: | ||
| D:\toolchains\Rust\.rustup | ||
| This can be modified with the RUSTUP_HOME environment variable. | ||
| The Cargo home directory is located at: | ||
| D:\toolchains\Rust\.cargo | ||
| This can be modified with the CARGO_HOME environment variable. | ||
| The cargo, rustc, rustup and other commands will be added to | ||
| Cargo's bin directory, located at: | ||
| D:\toolchains\Rust\.cargo\bin | ||
| This path will then be added to your PATH environment variable by | ||
| modifying the HKEY_CURRENT_USER/Environment/PATH registry key. | ||
| You can uninstall at any time with rustup self uninstall and | ||
| these changes will be reverted. | ||
| Current installation options: | ||
| default host triple: x86_64-pc-windows-msvc | ||
| default toolchain: stable (default) | ||
| profile: default | ||
| modify PATH variable: yes | ||
| 1) Proceed with standard installation (default - just press enter) | ||
| 2) Customize installation | ||
| 3) Cancel installation | ||
| >2 | ||
| I'm going to ask you the value of each of these installation options. | ||
| You may simply press the Enter key to leave unchanged. | ||
| Default host triple? [x86_64-pc-windows-msvc] | ||
| stable-x86_64-pc-windows-gnu 后续一直回车即可 | ||
| .......... | ||
| You can uninstall at any time with rustup self uninstall and | ||
| these changes will be reverted. | ||
| Current installation options: | ||
| default host triple: x86_64-pc-windows-msvc | ||
| default toolchain: stable (default) | ||
| profile: default | ||
| modify PATH variable: yes | ||
| 1) Proceed with standard installation (default - just press enter) | ||
| 2) Customize installation | ||
| 3) Cancel installation | ||
| > | ||
| info: profile set to 'default' | ||
| info: default host triple is x86_64-pc-windows-gnu | ||
| info: syncing channel updates for 'stable-x86_64-pc-windows-gnu' | ||
| 759.8 KiB / 759.8 KiB (100 %) 287.7 KiB/s in 2s ETA: 0s | ||
| info: latest update on 2024-08-08, rust version 1.80.1 (3f5fd8dd4 2024-08-06) | ||
| info: downloading component 'cargo' | ||
| info: downloading component 'clippy' | ||
| info: downloading component 'rust-docs' | ||
| info: downloading component 'rust-mingw' | ||
| info: downloading component 'rust-std' | ||
| info: downloading component 'rustc' | ||
| 74.7 MiB / 74.7 MiB (100 %) 272.0 KiB/s in 4m 55s ETA: 0s | ||
| info: downloading component 'rustfmt' | ||
| 3.2 MiB / 3.2 MiB (100 %) 269.5 KiB/s in 12s ETA: 0s | ||
| info: installing component 'cargo' | ||
| info: installing component 'clippy' | ||
| info: installing component 'rust-docs' | ||
| 15.7 MiB / 15.7 MiB (100 %) 1.5 MiB/s in 11s ETA: 0s | ||
| info: installing component 'rust-mingw' | ||
| info: installing component 'rust-std' | ||
| 22.5 MiB / 22.5 MiB (100 %) 11.4 MiB/s in 1s ETA: 0s | ||
| info: installing component 'rustc' | ||
| 74.7 MiB / 74.7 MiB (100 %) 13.5 MiB/s in 5s ETA: 0s | ||
| info: installing component 'rustfmt' | ||
| info: default toolchain set to 'stable-x86_64-pc-windows-gnu' | ||
| stable-x86_64-pc-windows-gnu installed - rustc 1.80.1 (3f5fd8dd4 2024-08-06) | ||
| Rust is installed now. Great! | ||
| To get started you may need to restart your current shell. | ||
| This would reload its PATH environment variable to include | ||
| Cargo's bin directory (D:\toolchains\Rust\.cargo\bin). | ||
| Press the Enter key to continue. | ||
| ``` | ||
|
|
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