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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ``` //打文件小文件都適用 package main import ( "bufio" "fmt" "io" "os" ) func main() { //打開文件 file, err := os.Open("test.txt") //返回的是指針(文件句柄) if err != nil { fmt.Println("open file err=", err) return } defer file.Close() //函數退出時會關閉文件 fmt.Printf("file ptr=%v\\n", file) reader := bufio.NewReader(file) for { str, err := reader.ReadString('\\n') //讀到換行就結束一次 if err == io.EOF { fmt.Print(str) //這里不加會遺漏最后一行 //文件結束 break } else if err != nil { fmt.Println("讀取錯誤", err) break } fmt.Print(str) } fmt.Printf("文件讀取結束") } ``` ``` //小文件可用 package main import ( "fmt" "io/ioutil" ) func main() { //打開文件 file, err := ioutil.ReadFile("test.txt") //不需要close file是[]byte if err != nil { fmt.Println("ReadFile err=", err) return } ? ? fmt.Printf("%v", string(file)) } ```
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