概述
| 名称 | 作用 | 备注 |
| Reader | 实现了 io.Reader 的缓存 | |
| Writer | 实现了 io.Writer 的缓存 | |
| ReadWriter | 存储 *Reader *Writer，实现了 io.ReadWriter. | |
| Scanner | 读取数据的便利的接口 |
示例
Writer
w := bufio.NewWriter(os.Stdout) fmt.Fprint(w, "Hello, ") fmt.Fprint(w, "world!") w.Flush() // Don't forget to flush! /* output: Hello, world! */
Scanner
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
fmt.Println(scanner.Text()) // Println will add back the final '\n'
}
if err := scanner.Err(); err != nil {
fmt.Fprintln(os.Stderr, "reading standard input:", err)
}
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