标签:lan ota 返回 efi 指定 文件 com file path
File file = new File("a.txt");// 默认项目路径
file.createNewFile();
file = new File("aaa");
file.mkdir();
file = new File("aaa\\bbb\\ccc");
file.mkdirs();// 创建多级目录
file.delete();
File file = new File("a.txt");
System.out.println("Create:" + file.createNewFile());
System.out.println("exists():" + file.exists());// file对象是否存在
System.out.println("ifFile():" + file.isFile());// 是否文件
System.out.println("isDirectory():" + file.isDirectory());// 是否文件夹
System.out.println("isAbsolute():" + file.isAbsolute());// 是否绝对路径
System.out.println("canRead():" + file.canRead());// 可读
System.out.println("canWrite():" + file.canWrite());
System.out.println("isHidden():" + file.isHidden());// 是否隐藏
System.out.println("delete():" + file.delete());
File file2 = new File("hello\\txt");
File file = new File(file2, "a.txt");
System.out.println("mkdris(): " + file2.mkdirs());
System.out.println("createNewFile(): " + file.createNewFile());
System.out.println("getName(): " + file.getName());
System.out.println("getAbsolutePath(): " + file.getAbsolutePath());// 输出绝对路径
System.out.println("getPath: " + file.getPath());// 相对路径
System.out.println("length(): " + file.length());// 文件大小,字节单位
System.out.println("lastModified(): " + file.lastModified());// 上次修改时间毫秒值
System.out.println("delete file and rec: " + file.delete() + " " + file2.delete());
// 遍历盘符
File[] rootArray = File.listRoots();
for (File e : rootArray)
System.out.println(e);
// 返回指定目录下文件和文件夹名称数组
File file = new File("D:\\");
String[] list = file.list();
for (String e : list)
System.out.println(e);
// 返回指定目录下文件和文件夹对象数组
File[] fList = file.listFiles();
for (File e : fList)
System.out.println(e.getName());
File file = new File("D:\\");
String[] list = file.list(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
File fTemp = new File(file, name);
boolean flag = fTemp.isFile();// 判断是否是文件
boolean flag2 = name.endsWith(".dll");// 判断是否指定后缀
return flag2 && flag;
}
});
for (String e : list)
System.out.println(e);
标签:lan ota 返回 efi 指定 文件 com file path
原文地址:https://www.cnblogs.com/xiongyungang/p/12740355.html