参数列表
- r 要读取的来源Reader
- w 要写入的目的Writer
返回值:
- *ReadWriter
功能说明:
- 这个函数根据指定的Reader和Writer创建一个ReadWriter对象
代码示例:
package main
import (
"bufio"
"bytes"
"fmt"
)
func main() {
rb := bytes.NewBuffer([]byte("a string to be read"))
wb := bytes.NewBuffer(nil)
r := bufio.NewReader(rb)
w := bufio.NewWriter(wb)
rw := bufio.NewReadWriter(r, w)
// use rw to read
var rbuf [128]byte
if n, err := rw.Read(rbuf[:]); err != nil {
return
} else {
fmt.Println(string(rbuf[:n]))
}
// use rw to write
if _, err := rw.Write([]byte("a string to be written")); err != nil {
return
}
rw.Flush()
fmt.Println(string(wb.Bytes()))
}
代码输出:
a string to be read
a string to be written