go 读取文件

package main
  
import (
        "fmt"
        "io/ioutil"
        "os"
)

func main() {
        f, err := os.Open("test.txt")
        if err != nil {
                fmt.Println("read file fail", err)
                panic(err)
        }
        defer f.Close()

        fd, err := ioutil.ReadAll(f)
        if err != nil {
                fmt.Println("read to fd fail", err)
                panic(err)
        }

        fmt.Println(string(fd))
}