来自路径字符串的父路径

/*

 * Copyright 2013-2015 EMC Corporation. All Rights Reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License").

 * You may not use this file except in compliance with the License.

 * A copy of the License is located at

 *

 * http://www.apache.org/licenses/LICENSE-2.0.txt

 *

 * or in the "license" file accompanying this file. This file is distributed

 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either

 * express or implied. See the License for the specific language governing

 * permissions and limitations under the License.

 */

//package com.nowjava;

import java.io.File;/*来 自 N o w  J a v a  .   c o m*/


public class Main {

    public static String parentPath(String path) {

        String parentPath = new File(path).getParent();

        if (parentPath != null && File.separatorC