删除目录下的子目录和文件（新）

import java.io.File;
public class TestFile4 {

	public static void main(String[] args) {

		String pathname = "mypath";
		deleteFile(new File(pathname));
		System.out.println("success");

	}

	//代码编写
	static void deleteFile(File root) {
	    if(root.exists()){
	        File[] files = root.listFiles();
	        for (File file:files ) {
	            if(file.isDirectory()) {
	                deleteFile(file);
	            }else{
	               
	                    file.delete();
	               
	                }
	            }
	        }
	        
	    
	    root.delete();
        }
	}
}