public static void saveFile(String path, String content, boolean append) throws IOException {
        saveFile(new File(path), content, append);
    }
public static void saveFile ( String path , String content , boolean append ) throws IOException { saveFile ( new File ( path ) , content , append ) ; }
保存文件

@param path 文件路径
@param content 内容
@param append 保存方式

@throws IOException 异常