GO lang：与shell进程通信

package main

import (
    "bufio"
    "fmt"
    "os/exec"
)

func main() {
    // What we want to calculate
    calcs := make([]string,2)
    calcs[0] = "3*3"
    calcs[1] = "6+6"

    // To store the results
    results := make([]string,2)

    cmd := exec.Command("/usr/bin/bc")

    in,err := cmd.StdinPipe()
    if err != nil {
        panic(err)
    }

    defer in.Close()

    out,err := cmd.StdoutPipe()
    if err != nil {
        panic(err)
    }

    defer out.Close()

    // We want to read line by line
    bufOut := bufio.NewReader(out)

    // Start the process
    if err = cmd.Start(); err != nil {
        panic(err)
    }

    // Write the operations to the process
    for _,calc := range calcs {
        _,err := in.Write([]byte(calc + "n"))
        if err != nil {
            panic(err)
        }
    }

    // Read the results from the process
    for i := 0; i < len(results); i++ {
        result,_,err := bufOut.ReadLine()
        if err != nil {
            panic(err)
        }
        results[i] = string(result)
    }

    // See what was calculated
    for _,result := range results {
        fmt.Println(result)
    }
}

您可能希望在不同的goroutine中读取/写入进程.