Trait CommandTrait 

pub trait CommandTrait<Target = Command> {
    // Required methods
    fn arg<S: AsRef<OsStr>>(self, arg: S) -> Self;
    fn args<I, S>(self, args: I) -> Self
       where I: IntoIterator<Item = S>,
             S: AsRef<OsStr>;
    fn envs<I, K, V>(self, vars: I) -> Self
       where I: IntoIterator<Item = (K, V)>,
             K: AsRef<OsStr>,
             V: AsRef<OsStr>;
    fn current_dir<P: AsRef<Path>>(self, dir: P) -> Self;
    fn stdin<T: Into<Stdio>>(self, cfg: T) -> Self;
    fn stdout<T: Into<Stdio>>(self, cfg: T) -> Self;
    fn stderr<T: Into<Stdio>>(self, cfg: T) -> Self;
    fn creation_flags(self, flags: u32) -> Self;
}

统一 Command 和 tokio::process::Command 接口的 trait 这个 trait 定义了一组通用的命令配置方法，使得 std::process::Command 和 tokio::process::Command 可以使用相同的接口进行操作。

Required Methods

fn arg<S: AsRef<OsStr>>(self, arg: S) -> Self

添加单个命令行参数

fn args<I, S>(self, args: I) -> Self

where I: IntoIterator<Item = S>, S: AsRef<OsStr>,

添加多个命令行参数

fn envs<I, K, V>(self, vars: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: AsRef<OsStr>, V: AsRef<OsStr>,

设置环境变量

fn current_dir<P: AsRef<Path>>(self, dir: P) -> Self

设置命令的工作目录

fn stdin<T: Into<Stdio>>(self, cfg: T) -> Self

配置命令的标准输入

fn stdout<T: Into<Stdio>>(self, cfg: T) -> Self

配置命令的标准输出

fn stderr<T: Into<Stdio>>(self, cfg: T) -> Self

配置命令的标准错误输出

fn creation_flags(self, flags: u32) -> Self

设置进程创建标志（主要用于 Windows 系统）

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl CommandTrait for Command

fn arg<S: AsRef<OsStr>>(self, arg: S) -> Self

fn args<I, S>(self, args: I) -> Self

where I: IntoIterator<Item = S>, S: AsRef<OsStr>,

fn envs<I, K, V>(self, vars: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: AsRef<OsStr>, V: AsRef<OsStr>,

fn current_dir<P: AsRef<Path>>(self, dir: P) -> Self

fn stdin<T: Into<Stdio>>(self, cfg: T) -> Self

fn stdout<T: Into<Stdio>>(self, cfg: T) -> Self

fn stderr<T: Into<Stdio>>(self, cfg: T) -> Self

fn creation_flags(self, flags: u32) -> Self

impl CommandTrait for Command

Available on crate feature tokio only.

fn arg<S: AsRef<OsStr>>(self, arg: S) -> Self

fn args<I, S>(self, args: I) -> Self

where I: IntoIterator<Item = S>, S: AsRef<OsStr>,

fn envs<I, K, V>(self, vars: I) -> Self

where I: IntoIterator<Item = (K, V)>, K: AsRef<OsStr>, V: AsRef<OsStr>,

fn current_dir<P: AsRef<Path>>(self, dir: P) -> Self

fn stdin<T: Into<Stdio>>(self, cfg: T) -> Self

fn stdout<T: Into<Stdio>>(self, cfg: T) -> Self

fn stderr<T: Into<Stdio>>(self, cfg: T) -> Self

fn creation_flags(self, flags: u32) -> Self

Implementors