Golang实现文件夹的创建与删除的方法详解

package main
 
import (
	"bufio"
	"fmt"
	"io"
	"os"
)
 
//判断文件夹是否存在
func HasDir(path string) (bool, error) {
	_, _err := os.Stat(path)
	if _err == nil {
		return true, nil
	}
	if os.IsNotExist(_err) {
		return false, nil
	}
	return false, _err
}
 
//创建文件夹
func CreateDir(path string) {
	_exist, _err := HasDir(path)
	if _err != nil {
		fmt.Printf("获取文件夹异常 -> %v\n", _err)
		return
	}
	if _exist {
		fmt.Println("文件夹已存在！")
	} else {
		err := os.Mkdir(path, os.ModePerm)
		if err != nil {
			fmt.Printf("创建目录异常 -> %v\n", err)
		} else {
			fmt.Println("创建成功!")
		}
	}
}
 
func main() {
	CreateDir("./output")
}

//删除文件
func RemoveFile(path string) error {
	_err := os.Remove(path)
	return _err
}
 
//删除文件夹
func RemoveDir(path string) error {
	_err := os.RemoveAll(path)
	return _err
}

package main

import (
	"fmt"
	"github.com/zhangdapeng520/zdpgo_file"
)

func main() {
	f := zdpgo_file.New()
	savePath := "./"

	// 单个下载
	url := "https://avatar.csdnimg.cn/2/9/0/1_togolife.jpg"
	err := f.Download.Download(savePath, url)
	if err != nil {
		fmt.Println("下载失败：", err)
	} else {
		fmt.Println("下载成功")
	}

	// 批量下载
	urls := []string{
		"https://alifei04.cfp.cn/creative/vcg/nowarter800/new/VCG41N695593548.jpg",
		"https://tenfei02.cfp.cn/creative/vcg/nowarter800/new/VCG41N1014325904.jpg",
		"https://tenfei05.cfp.cn/creative/vcg/nowater800/new/VCG41545444880.jpg",
	}
	f.Download.Downloads(savePath, urls)
}

package main

import (
	"fmt"
	"github.com/zhangdapeng520/zdpgo_file"
)

func main() {
	f := zdpgo_file.New()
	data := [][]string{
		{"a", "b", "c"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
		{"111", "222", "333"},
	}

	// 写入
	f.Csv.Write("test.csv", data)

	// 读取
	dataNew, err := f.Csv.Read("test.csv")
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println(dataNew)
}