+ (void)requestWithURL:(NSString *)url                method:(NSString *)method             paramInfo:(NSDictionary *)param                handle:(void (^)(NSURLRequest *request, NSData *responseData, NSError *error))handleBlock {    // 創建互斥鎖    static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;    // 創建計數器    static NSUInteger count = 0;    // 創建請求對象    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url]];    [request setHTTPMethod:method];    [request setTimeoutInterval:20.0];    // 添加POST請求體    if ([[method uppercaseString] isEqualToString:@"POST"]) {        NSMutableString *paramStr = [NSMutableString string];        for (NSString *key in [param allKeys]) {            [paramStr appendFormat:@"%@=%@&", key, param[key]];        }        [request setHTTPBody:[[paramStr substringToIndex:paramStr.length - 1] dataUsingEncoding:NSUTF8StringEncoding]];    }    // 創建會話任務    NSURLsessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:            ^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {                // 檢測所有任務是否完畢                pthread_mutex_lock(&mutex);                if (--count == 0) {                                    [[UIapplication sharedApplication] setNetworkActivityIndicatorVisible:NO];                    dispatch_async(dispatch_get_main_queue(), ^{                        [[NSNotificationCenter defaultCenter] postNotificationName:@"RequestFinished" object:nil];                    });                }                pthread_mutex_unlock(&mutex);                // 回調                if (handleBlock) {                    handleBlock(request, data, error);                }            }];    [dataTask resume];    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];    // 請求計數加1    ++count;}對請求到的數據進行解析分析，用正則進行匹配。導入兩個文件分別是RegexKitLite.m,RegexKitLite.h,由于文件比較久遠，所以倒入后會報錯，所以要在Build phases的Compile Sources中的RegexKitLite.m加入-fno-objc-arc，另外，還要加入相應的類庫libicucore.tbd 
+ (NSArray *)parseListWithData:(NSData *)data {    // 數據預處理    NSString *string = [self _PReprocessWithData:data];    // 創建返回數據    NSMutableArray *listDataArray = [NSMutableArray array];    // 匹配動態文本    NSArray  *listMatchArray = [string componentsMatchedByRegex:@"<a.*?</tr>"];    if (listMatchArray.count == 0) {        return nil;    }    // 創建數據模型    for (NSUInteger index = 0; index != listMatchArray.count - 1; ++index) {        // 解析數據        NSString *listRawText = listMatchArray[index];        NSString *titleText = [listRawText componentsMatchedByRegex:@"(?<=>).+?(?=</a>)"][0];        NSString *hrefText  = [listRawText componentsMatchedByRegex:@"(?<=href=/").+?(?=/")"][0];        NSString *dateText  = [listRawText componentsMatchedByRegex:@"(?<=//[)//d{4}-//d{2}-//d{2}(?=//])"][0];        // 插入數據        [listDataArray addObject:[@{@"title": [titleText stringByReplacingOccurrencesOfString:@" " withString:@""],                                    @"href":  hrefText,                                    @"date":  dateText,                                        } mutableCopy]];    }    return listDataArray;}#pragma mark - Helper+ (NSString *)_preprocessWithData:(NSData *)data {    NSString *rawStr = [[NSString alloc] initWithData:data                                             encoding:CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000)];    return [rawStr stringByReplacingOccurrencesOfRegex:@"[/t/r/n]" withString:@""];}根據自己的需求相應的得到網頁中的具體數據信息