小编joa*_*oao的帖子

是否可以知道应用程序是否通过推送通知启动/打开？

我猜这个发布活动可以在这里找到:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    if (launchOptions != nil) {
         // Launched from push notification
         NSDictionary *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

    }
}

但是,当应用程序处于后台时,如何检测到它是从推送通知中打开的？

我正在按照给定的示例代码

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager GET:@"http://example.com/resources.json" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

要更改超时和缓存策略,我'已经'破解了库并创建了

- (AFHTTPRequestOperation *)GET:(NSString *)URLString
                     parameters:(NSDictionary *)parameters
                          timeoutInterval:(NSTimeInterval)timeoutInterval
                    cachePolicy:(NSURLRequestCachePolicy)cachePolicy
                        success:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success
                        failure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure
{
    NSMutableURLRequest *request = [self.requestSerializer requestWithMethod:@"GET" URLString:[[NSURL URLWithString:URLString relativeToURL:self.baseURL] absoluteString] parameters:parameters];
    [request setTimeoutInterval:timeoutInterval];
    [request setCachePolicy:cachePolicy];
    AFHTTPRequestOperation *operation = [self HTTPRequestOperationWithRequest:request success:success failure:failure];
    [self.operationQueue addOperation:operation];

    return operation;
}

这样做有干净的方法吗？

MongoDB中提供了大量的" Date Aggregation Operators",如$dayOfYear,$dayOf Month和$millisecond.该$millisecond函数只返回时间戳的毫秒数,范围为0-999.

Date从聚合管道中的纪元开始,有没有办法以毫秒为单位访问对象？

谢谢,

弥敦道

请考虑以下系列

s = pd.Series([0,1,2,3,4,1,5,4,3,2,1])

有没有一种简单的方法可以知道达到/超过2值的次数(没有明显的迭代解决方案)？

上述示例的预期结果应为4(2行在系列中向上或向下划线4次).

编辑:更新的示例案例

我正在尝试安装这个软件,一些用于在本地mongodb数据库中搜索的脚本:https: //github.com/wimremes/cve-search/blob/master/README.md

由于search.py​​脚本失败了,我试图按照建议添加一些索引:

db.cpe.ensureIndex( {id:1 } )
db.cves.ensureIndex( {id:1} )
db.cves.ensureIndex( {vulnerable_configuration:1} )
db.vfeed.ensureIndex( {id:1} )

但是这段代码不起作用:ensureIndex失败并出现此错误:

File "build/bdist.linux-i686/egg/pymongo/collection.py", line 1672, in __call__
TypeError: 'Collection' object is not callable. If you meant to call the 'ensureIndex' method on a 'Collection' object it is failing because no such method exists.

并ensure_index( {id:1})返回此:

TypeError: if no direction is specified, key_or_list must be an instance of list

我怎么做才能获得新指数？