递归删除

import java.io.File;
public class  { 
	public static void main(String[] args) {
    File file = new File("D:developcode"); 
    del(file);
}
private static void del(File file) {
	File[] listFiles = file.listFiles();
	for (File f : listFiles) {
		if (f.isDirectory()) {
			del(f);
		} else {
			f.delete();
		}
	}
	file.delete();
}
}