小编Mur*_*aya的帖子

当我尝试在设备上工作时,我收到了这个错误.但是应用程序在Simulator中工作得很好.我该怎么办？你有什么建议吗？

dyld`dyld_fatal_error

谢谢

我只想通过电话号码联系姓名和姓氏.我试过这个,但这太慢了,cpu超过%120.

let contactStore = CNContactStore()
            let keys = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey]
            var contacts = [CNContact]()
            do {
                try contactStore.enumerateContactsWithFetchRequest(CNContactFetchRequest.init(keysToFetch: keys), usingBlock: { (contact, cursor) in
                    if (!contact.phoneNumbers.isEmpty) {
                        for phoneNumber in contact.phoneNumbers {
                            if let phoneNumberStruct = phoneNumber.value as? CNPhoneNumber {
                                do {
                                    let libPhone = try util.parseWithPhoneCarrierRegion(phoneNumberStruct.stringValue)
                                    let phoneToCompare = try util.getNationalSignificantNumber(libPhone)
                                    if formattedPhone == phoneToCompare {
                                        contacts.append(contact)
                                    }
                                }catch {
                                    print(error)
                                }
                            }

                        }
                    }
                })
                if contacts.count > 0 {
                    contactName = (contacts.first?.givenName)! + " " + …

我试图在鼠标移动时获得x,y坐标.当我想要得到它时,我会收到错误.

TypeError:无法在HTMLDivElement.onmousemove(仪表板:442)的mouseMove(仪表板:593)处读取undefined属性'latlng'

<div id="map" onmousemove="mouseMove()"></div>
<script type="text/javascript">
        var iMaxZoom = 1;

        var map = L.map('map', {
            crs: L.CRS.Simple,
            minZoom: -5,
            maxZoom: 1
        });



        var bounds = [[0,0], [711,473]];

        var image = L.imageOverlay('{!! asset('assets/images/birlikmarket.png')  !!}', bounds).addTo(map);
        map.fitBounds(bounds);
        // mouse move detect x, y coordinates
        function mouseMove(e) {
            var tileSize = [711,473]
            try {
                console.log(e.latlng)
            }catch(error) {
                console.log(error)
            }
}
</script>

我试图这样做,但它说

"AnyObject"类型的值？没有会员'发电机'

所以这是我的代码.

let dataDictionary:NSDictionary = try NSJSONSerialization.JSONObjectWithData(responseObject as! NSData, options: NSJSONReadingOptions.MutableContainers) as! NSDictionary
                var customerArray = dataDictionary.valueForKey("kart")
                for js: NSDictionary in customerArray {
                    let nameArray: NSArray = js.valueForKey("name")
                }

我做错了什么.我没弄明白.谢谢你的帮助.

我想按顺序更改每个单元格背景颜色.

这是我的颜色.我只想在图像中显示它们.

我现在用随机颜色显示它.但我想按顺序显示它们.

var cellColors = ["F28044","F0A761","FEC362","F0BB4C","E3CB92","FEA375"]
func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! GroupTableViewCell
        let randomColor = Int(arc4random_uniform(UInt32(self.cellColors.count)))
        cell.contentView.backgroundColor = UIColor(hexString: self.cellColors[randomColor])
    }

我只需要了解如何检测scrapy是否已保存以及蜘蛛中的项目？我正在从网站上获取项目,之后我正在获取该项目的评论.所以首先我必须保存项目,之后我会保存评论.但是当我在编写代码之后编写代码时,它会给我这个错误.

save() prohibited to prevent data loss due to unsaved related object ''.

这是我的代码

def parseProductComments(self, response):

        name = response.css('h1.product-name::text').extract_first()
        price = response.css('span[id=offering-price] > span::text').extract_first()
        node = response.xpath("//script[contains(text(),'var utagData = ')]/text()")
        data = node.re('= (\{.+\})')[0]  #data = xpath.re(" = (\{.+\})")
        data = json.loads(data)

        barcode = data['product_barcode']

        objectImages = []
        for imageThumDiv in response.css('div[id=productThumbnailsCarousel]'):
            images = imageThumDiv.xpath('img/@data-src').extract()
            for image in images:
                imageQuality = image.replace('/80/', '/500/')
                objectImages.append(imageQuality)
        company = Company.objects.get(pk=3)
        comments = []
        item = ProductItem(name=name, price=price, barcode=barcode, file_urls=objectImages, product_url=response.url,product_company=company, comments = …

我正试图在avplayer中播放rtmp链接.然而,它不是在玩.我该怎么办？

self.avAsset = AVAsset(URL: NSURL(string: rtmpUrlString)!)

谢谢.

我正在尝试使用 laravel 5.3 构建查询。但当我进行此查询时，我收到此错误。

错误：

SQLSTATE[42000]: 语法错误或访问冲突: 1055 'laravel.location.locationDate' 不在 GROUP BY 中 (SQL: select count(*), locationDate from where location= tagCode24930 and xLocation> -1 and xLocation< 194 and yLocation> 60 and yLocation< 190 和created_at> 2017-03-09 00:00:01 和created_at< 2017-03-09 23:59:59 按 DATE(locationDate)、hour(locationDate)) 分组

顺便说一句，如果我复制查询并尝试在 sql 中运行它，它就可以工作。但我只是将引号添加到created_at，例如'2017-03-09 00:00:01'

这是我的代码..

$zoneTime = DB::table('location')
                            ->select(DB::raw('count(*), locationDate'))
                            ->where('tagCode', $tagCode)
                            ->where('xLocation', '>', $workingZone->x1)
                            ->where('xLocation', '<', $workingZone->x3)
                            ->where('yLocation', '>', $workingZone->y3)
                            ->where('yLocation', '<', $workingZone->y1)
                            ->where('created_at', '>', $startDate)
                            ->where('created_at', …

我需要检查加载到UIImage目标文件中的文件是否等于另一个图像并执行某些操作(如果是这样).不幸的是,它没有用.

emptyImage = UIImage(named: imageName)

if(image1.image != emptyImage) {
    // do something
} else {
    // do something
}

上面的代码总是进入if分支.

我正在尝试在我的项目中使用螺栓.

当我尝试使用带有继续的螺栓时,我收到此错误.

Ambiguous use of 'continue'

这也是我的代码.

return PFUser._privateDigitsLoginWithConfiguration(configuration: configuration).continue{ task in
            guard let result = task.result as? [String:AnyObject] else {
                return nil
            }
            let requestURLString = result[Constants.requestURLStringKey] as! String
            let authorizationHeader = result[Constants.authorizationHeaderKey] as! String
            print(Constants)
            return PFCloud.callFunction(inBackground: "loginWithDigits", withParameters: ["requestURL": requestURLString, "authHeader": authorizationHeader])
            }.continue {
                PFUser.become(inBackground: $0.result as! String)
        }

我正在尝试在我的mac中使用opencv和python来匹配对象.

但是我收到了这个错误.

OpenCV: Cannot Use FaceTime HD Kamera (Yerle?ik)
OpenCV: camera failed to properly initialize!
Segmentation fault: 11

这也是我的代码.

import numpy as np
import cv2
import time

ESC=27   
camera = cv2.VideoCapture(0)
orb = cv2.ORB_create()


while True:

    ret, imgCamColor = camera.read()
    imgCamGray = cv2.cvtColor(imgCamColor, cv2.COLOR_BGR2GRAY)
    kpCam = orb.detect(imgCamGray,None)
    kpCam, desCam = orb.compute(imgCamGray, kpCam)
    bf = cv2.BFMatcher(cv2.NORM_HAMMING, crossCheck=True)
    matches = bf.match(desCam,desTrain)
    good = []


    cv2.imshow('Camara', result)

    key = cv2.waitKey(20)                                 
    if key == ESC:
        break

cv2.destroyAllWindows()
camera.release()

我也尝试了一些东西.但它不起作用.

我正在尝试按时间值组合多个数组。我有一个这样的数组。

[
   {
      x:"Kasa",
      y:" 8",
      id:6,
      a:0.019444444444444
   },
   {
      x:"Kasa",
      y:" 9",
      id:6,
      a:0.023611111111111
   },
   {
      x:"Kasa",
      y:"10",
      id:6,
      a:0.018055555555556
   },
   {
      x:"Kasa",
      y:"11",
      id:6,
      a:0.025
   },
   {
      x:"Kasa",
      y:"12",
      id:6,
      a:0.0097222222222222
   }
],
[
   {
      x:"Kasap",
      y:" 8",
      id:7,
      a:0.0013888888888889
   },
   {
      x:"Kasap",
      y:" 9",
      id:7,
      a:0.015277777777778
   },
   {
      x:"Kasap",
      y:"10",
      id:7,
      a:0.0027777777777778
   },
   {
      x:"Kasap",
      y:"11",
      id:7,
      a:0.0041666666666667
   },
   {
      x:"Kasap",
      y:"12",
      id:7,
      a:0.019444444444444
   }
]

我需要将这 2 个数组与 y 值结合起来。例如组合数组后应该是这样的。

[
   {
      x:"Kasa",
      y:" 8",
      id:6, …