文件的读取和写入

package main

import ( "fmt" "io/ioutil" "os" )

func main() { file1 := "/Users/mazhilei/Desktop/subject/Golang-test/test/test.txt" file := "/Users/mazhilei/Desktop/subject/Golang-test/test/test3.txt" _, err := os.Stat(file)//判断文件是否存在 if err != nil { os.Create("/Users/mazhilei/Desktop/subject/Golang-test/test/test3.txt") }

contents, err := ioutil.ReadFile(file1)
if err != nil {
	fmt.Println("读取文件内容有错")
}

err = ioutil.WriteFile(file, contents, 0)
if err != nil {
	fmt.Println("写入文件有错误")
}

}