golang批量修改文件名

package main

import (
    "fmt"
    "io/ioutil"
    "strings"

    "os"
    "path/filepath"
)

func main() {
    path := "."
    files, _ := ioutil.ReadDir(path)
    for index, f := range files {
        // 帶擴展名的文件名
        fullFilename := f.Name()
        fmt.Println(index)
        fmt.Println(fullFilename)
        //擴展名
        fileExt := filepath.Ext(f.Name())
        fmt.Println(fileExt)
        // 不帶擴展名的文件名
        filenameOnly := strings.TrimSuffix(fullFilename, fileExt)
        fmt.Println(filenameOnly)
        //將每個文件名后面加上1，擴展名不變
        //os.Rename(path+"\\"+f.Name(), path+"\\"+fmt.Sprintf("%s%s%s", filenameOnly, "1", fileExt))
        //將每個文件名中的1替換為2，擴展名不變
        os.Rename(path+"\\"+f.Name(), path+"\\"+fmt.Sprintf("%s%s", strings.Replace(filenameOnly, "1", "2", 1), fileExt))
    }
}

參考：https://studygolang.com/articles/14090

https://www.jianshu.com/p/c0aa30cb4bc0