windows-msvc'stable-x86_64-pc-windows-msvc installed - rustc 1.69.0 (84c898d65 2023-04-16)Rust is installed now. Great!To get started you may need to restart your current shell.This would reload its PATH environment variable to includeCargo's bin directory (%USERPROFILE%\.cargo\bin).P...
Rust is installed now. Great! To get started you may need to restart your current shell. This would reload your PATH environment variable to include Cargo's bin directory ($HOME/.cargo/bin). To configure your current shell, run: source "$HOME/.cargo/env" 查看版本 退出终端,重新打开终端: ...
EnvironmentVariable:表示从环境变量中解析配置。 DeriveProceduralMacroAttribute:表示从衍生宏的属性中解析配置。 ProcMacroDeriveAttribute:表示从过程宏的派生属性中解析配置。 Default:表示使用默认配置。 MacroConfigType:该enum定义了Rustfmt针对过程宏的派生属性的配置类型。每个选项表示了Rustfmt针对过程宏的不同配置。主...
normalize: TypeVariableNormalize<'me>:对类型进行规范化的辅助结构。 location_table: LocationTable<'me>:存储了关于位置(Location)的信息,用于错误报告和调试。 outlives_env: OutlivesEnvironment<'tcx>:存储了涉及生命周期的信息,用于追踪生命周期的约束关系。 universal_regions: UniversalRegions<'tcx>:用于表示通...
environment variable. The cargo, rustc, rustup and other commands will be added to Cargo's bin directory, located at: D:\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...
Rust is installed now. Great!To get started you may need to restart your current shell. This would reload yourPATHenvironment variable to include Cargo's bin directory ($HOME/.cargo/bin).To configure your current shell, run:source"$HOME/.cargo/env" ...
Rustisinstalled now. Great!Toget started you may needtorestart your current shell. This would reload its PATH environmentvariabletoinclude Cargo'sbin directory (%USERPROFILE%\.cargo\bin). Press the Enter keytocontinue. 核心组件 rustup:安装、更新rust用的,rustup doc 可查看安装包中的官方指导文档 ...
println!("{}",matchv.get(0){ Some(value)=>value.to_string(), None=>"None".to_string() }); } 运行结果: 1 因为向量的长度无法从逻辑上推断,get 方法无法保证一定取到值,所以 get 方法的返回值是 Option 枚举类,有可能为空。 这是一种安全的取值方法,但是书写起来有些麻烦。如果你能够保证取值...
Cargo.RustupmetadataandtoolchainswillbeinstalledintotheRustuphomedirectory,locatedat:C:\Users\Echo\.rustupThiscanbemodifiedwiththeRUSTUP_HOMEenvironmentvariable.TheCargohomedirectoryislocatedat:C:\Users\Echo\.cargoThiscanbemodifiedwiththeCARGO_HOMEenvironmentvariable.Thecargo,rustc,rustupandothercommandswillbe...
{ EnvironmentVariableNotFound, IOError(std::io::Error), } // 自定义错误类型MyCustomError实现Error trait后,才能转换成相应的特征对象 impl Error for MyCustomError {} // 返回MyCustomError错误 fn get_config_content() -> Result<String, MyCustomError> { let file = std::env::var("CONFIG_...