从文本文件中删除前N个字节

从文本文件中删除前N个字节

您需要

f.Seek

跳过第一个字节并进行常规读取，请参见示例：

package mainimport (    "fmt"    "io"    "io/ioutil"    "os")func main() {    f, err := os.Open(os.Args[1]) // open file from argument    if err != nil {        fmt.Println(err)        return    }    var skipBytes int64 = 5       // how many bytes to skip    _, err = f.Seek(skipBytes, io.SeekStart) // skipping first bytes    if err != nil {        fmt.Println(err)        return    }    buffer := make([]byte, 1024)    // allocating buffer to read    for {        n, err := f.Read(buffer)    // reading        fmt.Print(string(buffer[:n]))          // writing to console        if err != nil { fmt.Printf("Err: %vn", err) return        }    }}