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                ## 一、文件拷貝 ~~~ package main import ( "os" "fmt" "io" ) func main() { //打開文件 srcFile, err := os.Open("./xxx.txt") if err != nil { fmt.Println(err) return } //創建目標文件 dstFile, err2 := os.Create("./yyy.txt") if err2 != nil { fmt.Println(err2) return } //切片緩沖區 buf := make([]byte, 1024) for { //從源文件讀 n, err := srcFile.Read(buf) //Read()若無法得到更多的結果,就返回EOF if err != nil && err != io.EOF { fmt.Println(err) break } if n == 0 { fmt.Println("文件處理完畢") break } //讀到的內容寫入目標文件 dstFile.Write(buf[:n]) } srcFile.Close() dstFile.Close() } ~~~
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