using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; namespace FileSort { class Program { //static void Main(string[] args) //{ //} public enum CharType { Number = , Normal = } public class M
批量创建文件 int cont = 1; String s = "E:\\学习资料\\Java笔记-"; while(cont<100){ File f = new File(s+cont+".txt"); if(!f.exists()){ f.createNewFile(); } cont++; } 批量修改文件名 File file = new File("E:\\学习资料"); String sf = file.getAbsolute
list()方法是返回某个目录下的所有文件和目录的文件名,返回的是String数组 listFiles()方法是返回某个目录下所有文件和目录的绝对路径,返回的是File数组 public class FileTest { public static void main(String[] args) { //创建File对象 File file = new File("D:\\Android"); //获取该目录下的所有文件 String[] files = file.list(); f
1. File常用的构造 File file = new File("字符串路径"); File f = new File("D:\\a\\b.txt"); File file = new File("父路径的字符串表现形式","子路径的字符串表现形式"); File f2 = new File("D:\\a","b.txt"); File file = new File(父路径的Fil