golang io 读取文件
package main
import (
"fmt"
"io/ioutil"
"log"
"strings"
)
func main() {
r := strings.NewReader("Go is a general-purpose language designed with systems programming in mind.")
b, err := ioutil.ReadAll(r)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s", b)
dir, err := ioutil.ReadDir("../")
if err != nil {
log.Fatal(err)
}
for _, file := range dir {
fmt.Println(file.Name())
}
b, err = ioutil.ReadFile("./main.go")
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s", b)
}