Go程序运行带有参数的外部soft.exe:
cmd := exec.Command("soft.exe", "-text")
out, _ := cmd.CombinedOutput()
fmt.Printf("%s", out)
soft.exe文件具有一些输出并等待输入值,例如:
请选择代码: 1,2,3,4
通常,在外壳窗口中,我只键入“ 1”并按Enter,然后soft.exe给出结果。
谢谢,您的验证码是[一些数字]
运行后如何填充“ 1”并使用GoLang获得输出?在我的示例中,运行soft.exe后,它立即完成“请选择代码:1、2、3、4”的工作。
答案 0 :(得分:2)
您需要将os.Stdin重定向到cmd.Stdin,将os.Stdout重定向到cmd.Stdout
参见godoc:https://golang.org/pkg/os/exec/#Cmd
// Stdin specifies the process's standard input. // // If Stdin is nil, the process reads from the null device (os.DevNull). // // If Stdin is an *os.File, the process's standard input is connected // directly to that file. // // Otherwise, during the execution of the command a separate // goroutine reads from Stdin and delivers that data to the command // over a pipe. In this case, Wait does not complete until the goroutine // stops copying, either because it has reached the end of Stdin // (EOF or a read error) or because writing to the pipe returned an error. Stdin io.Reader
此示例在Windows上进行了测试。
package main
import (
"fmt"
"os"
"os/exec"
)
func main() {
cmd := exec.Command("yo")
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
cmd.Stdin = os.Stdin
if err := cmd.Run(); err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
}