go的讀寫操作

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讀寫操作：// hello project main.go/*從檔案中讀取資料，然後進行排序，再把排序後的資料寫入到新檔案中*/package mainimport ("fmt" //使用fmt包中的Println()函數"bufio""io""os""strconv""sort")func readValues(infile string) (values []int,err error){file,err := os.Open(infile)if err != nil {fmt.Println("開啟檔案失敗！",infile)}defer file.Close()br := bufio.NewReader(file)values = make([]int,0)for{line,isPrefix,err1 := br.ReadLine()if err1 != nil{if err1 != io.EOF{err = err1}break}if isPrefix{fmt.Println("A too long line, seems upexpected")return}str := string(line)value,err2 := strconv.Atoi(str)if err2 != nil{err = err2return}values = append(values,value)}return values,nil}func writeValues(values []int,outfile string) error{file,err := os.Create(outfile)if err != nil{fmt.Println("建立檔案失敗！",outfile)return err}defer file.Close()for _,value := range values{str := strconv.Itoa(value)file.WriteString(str+"\n")}return nil}func main() {values,err := readValues("unsorted.dat")if err != nil{fmt.Println(err)}else{sort.Ints(values)writeValues(values,"sort.dat")}}

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go的讀寫操作