7：golang，Command执行后，输出命令行的信息
func DumpSql(dbDir string) error {
sqlExe := filepath.Join(dbDir, `sqlite3.exe`)
if !Exist(sqlExe) {
return fmt.Errorf("not found file:%s", sqlExe)
}
dmt := fmt.Sprintf("/c cd %s&%s&sqlite3.exe QQ.db < dump.sql", dbDir, dbDir[0:2])
cmd := exec.Command(`cmd.exe`, dmt)
var out bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &stderr
if err := cmd.Run(); err != nil {
fmt.Println(fmt.Sprint(err) + ": " + stderr.String())
return err
}
fmt.Println("Result: " + out.String())
return nil
}