//// pack.go 506行
        args := []string{"build", "-o", binPath}
		if len(buildArgs) > 0 {
			args = append(args, strings.Fields(buildArgs)...)
		}

		if verbose {
			fmt.Fprintf(output, "\t%s%s+ go %s%s%s\n", "\x1b[32m", "\x1b[1m", strings.Join(args, " "), "\x1b[21m", "\x1b[0m")
		}

		execmd := exec.Command("go", args...)

        //// pack.go 506行
        var execmd *exec.Cmd
		buildCmdStr := "go build -o " + binPath + " " + buildArgs
		if runtime.GOOS == "windows" {
			execmd   = exec.Command("cmd", "/C", buildCmdStr)
		} else {
			execmd = exec.Command("/bin/bash", "-c", buildCmdStr)
		}

		if verbose {
			fmt.Fprintf(output, "\t%s%s+ %s%s%s\n", "\x1b[32m", "\x1b[1m", buildCmdStr, "\x1b[21m", "\x1b[0m")
		}