inputReader := bufio.NewReader(os.Stdin) 这行代码,将会创建一个读取器,并将其与标准输入绑定。 bufio.NewReader() 构造函数的签名为:func NewReader(rd io.Reader) *Reader 该函数的实参可以是满足 io.Reader 接口的任意对象,函数返回一个新的带缓冲的 io.Reader 对象,它将从指定读取器(例如 os.Stdin)读...
在ruby18中,为了获得完全控制的子进程,我有时会执行以下操作: stdin, @stdin= IO.pipe @stdout, stdout= IO.pipe @stderr, stderr= IO.pipe @pid= fork do @stdin.close STDIN.close stdin.dup @stdout.close STDOUT.close stdout.dup @stderr.close STDERR.close stderr.dup exec(...) end 这在rub...
除了fmt 和 os 包之外, 还需要导入 bufio 包, 以实现带缓冲的输入和输出操作. 12.1 读取用户输入 从键盘或标准输入端 (即 os.Stdin), 可读取用户输入, 当然最简单的方式则是采用 fmt 包中, 给出 Scan-或Sscan-前缀的函数, 如下: 例 12.1 readinput1.go Scanln 可从标准输入端中, 读取文本输入, 并将...
Why do I get "bad file descriptor" in this Go Program using stderr and ioutil.ReadAll 2 Reading from stdin in golang 0 Can a Go program read from the keyboard when stdin is something else? 3 Golang os.stdin as a Reader in Goroutines 6 Golang - Read Os.stdin in...
= nil { fmt.Println("err: ", err) return } defer conn.Close() //打开os.Stdin,并返回一个文件句柄 inputReader := bufio.NewReader(os.Stdin) for { //读取用户输入 fmt.Println("请输入待发送的消息:") //输入换行结束输入 input, _ := inputReader.ReadString('\n') //strings.Trim去掉字符...
}// Get the handle to stdinifstate.inHandle, err = syscall.GetStdHandle(syscall.STD_INPUT_HANDLE); err !=nil{returnstate, err }// Get the console mode from the consoles stdin handleiferr = syscall.GetConsoleMode(state.inHandle, &state.inMode); err !=nil{returnstate, err ...
cmd.Stdin = strings.NewReader ("some input")varout bytes.Buffer cmd.Stdout = &out err:= cmd.Run ()iferr !=nil {log.Fatal (err) } fmt.Printf("in all caps: %q\n", out.String()) } 输出:in all caps: "SOME INPUT" 命令行参数 (可用flag包) ...
input, _ := ioutil.ReadAll(os.Stdin) //write2Log(string(input)) param := strings.Fields(string(input)) // allow branch/tag delete if param[0] =="0000000000000000000000000000000000000000" || param[1] =="0000000000000000000000000000000000000000" { ...
println!("Rust: Read input file \"{}\" succeeded.", args[1]); // Get stdin to print lines. println!("Rust: Please input the line number to print the line of file."); let stdin = io::stdin(); for line in stdin.lock().lines() { ...
fmt.Fprintf(os.Stderr,"Reads connection info from ./my.cnf. Use '-' for table to send query in stdin\n\n") flag.PrintDefaults() } flag.Parse() args := flag.Args()iflen(args) <2{ flag.Usage() os.Exit(1) } dsn := getDSN(*defaults_file,"client"+*defaults_group_suffix, args...