标签:取字符串 std process write ade proc func ack eww
package main
import (
"strings"
"bufio"
"fmt"
"os"
)
func main() {
/////////////////读
strReader := strings.NewReader("hello world") //直接读取字符串
bufReader := bufio.NewReader(strReader)
data, _ := bufReader.Peek(5) //只读不取
fmt.Println(string(data), bufReader.Buffered()) //bufReader.Buffered()是缓存的字符数,此处正好是将hello world都缓存起来了
str, _ := bufReader.ReadString(‘ ‘) //取出来,所以下面的bufReader.Buffered()成了5
fmt.Println(str, bufReader.Buffered())
/////////////////写
w := bufio.NewWriter(os.Stdout)
//将Hello和world写入到w,但还要w.Flush()才能真正写入
fmt.Fprint(w, "Hello")
fmt.Fprint(w, "world")
w.Flush()
}
输出:
标签:取字符串 std process write ade proc func ack eww
原文地址:https://blog.51cto.com/5660061/2361265