golang 写文件

package main



import (

    "bufio"

    "fmt"

    "io"

    "os"

)



func main() {     



    fil, err := os.OpenFile("C:/Documents and Settings/xxx/Desktop/tax.txt", os.O_RDWR|os.O_APPEND, 0420)

    if err != nil {

        fmt.Printf("Error: %s\n", err)

        return

    }

    defer fil.Close()

    fil.WriteString("Hello World!\n")



}

 

===============io WriteString==================



package main



import (

    "fmt"

    "io"

    "os"

)



func main() {

    writer, _ := os.OpenFile("C:/Documents and Settings/xxxx/Desktop/Copy of change-sub/b.md", os.O_RDWR|os.O_APPEND, 0420)

    data :=  data..xxxxxxx"

    n, err := io.WriteString(writer, data)

    if err != nil {

        fmt.Println("error write", n, "byte")

    }

    defer writer.Close()

}