“Golang Write File” Respostas de código

Golang Write String para arquivo

f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
    panic(err)
}

defer f.Close()

if _, err = f.WriteString(text); err != nil {
    panic(err)
}
smjure

Golang Write File

// write file
write1, _ := os.Create("index.txt")
write1.Write([]byte("hello wordl"))

ioutil.WriteFile("indexx.txt", []byte("hello wordl"), fs.ModePerm)
os.WriteFile("indexxx.txt", []byte("hello wordl"), fs.ModePerm)

write2 := strings.NewReader("hello wordl")
write2.WriteTo(os.Stdout)

write3 := bufio.NewReader(write2)
write3.WriteTo(os.Stdout)

write4 := bufio.NewWriter(os.Stdout)
write4.ReadFrom(write2)

// read file
read1, _ := fs.ReadFile(os.DirFS("."), "index.txt")
fmt.Println(string(read1))

read2, _ := os.ReadFile("index.txt")
fmt.Println(string(read2))

read3, _ := ioutil.ReadFile("index.txt")
fmt.Println(string(read3))
Restu Wahyu Saputra

Exemplo de Golang Writefile

err := os.WriteFile("index.txt", []byte("example writefile using go"), os.ModePerm)
if err != nil {
  fmt.Println(err)
}

res, _ := os.ReadFile("index.txt")
fmt.Println(string(res))
Restu Wahyu Saputra

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