Question

我想检查传出变量的值是否为0或1.我尝试下面的代码做同样的但我无法检查它。在下面的代码中，import { Component, OnInit } from '@angular/core'; import { ActivatedRoute } from '@angular/router'; import { Hero } from '../shared/hero.model'; import { HeroService } from '../shared/hero.service'; @Component({ selector: 'app-hero', templateUrl: './hero.component.html', styleUrls: ['./hero.component.scss'], providers: [HeroService] }) export class HeroComponent implements OnInit { hero: Hero; constructor(private route: ActivatedRoute, private heroService: HeroService) { } ngOnInit() { let id = this.route.snapshot.params['id']; this.heroService.getHero(id).subscribe(hero => { this.hero = hero; }); } }是一个包含message的值的字典。

如何检查XMPPMessageArchiving_Message_CoreDataObject变量的值？

outgoing字典包含：

message

当我调试bareJid = "(...not nil..)"; bareJidStr = "tester3@90.0.0.163"; body = "{\"Date\":\"14 Jun 2017\",\"Time\":\"4:21PM\",\"body\":\"hello\",\"filePath\":\"\",\"isImportant\":\"N\",\"isMine\":true,\"msgid\":\"167-36\",\"receiver\":\"tester1\",\"sender\":\"tester3\",\"senderName\":\"tester3\"}"; composing = 0; message = "(...not nil..)"; messageStr = "<message xmlns=\"jabber:client\" to=\"tester1@90.0.0.163\" id=\"167-36\" type=\"chat\" from=\"tester3@90.0.0.163/Smack\"><body>{\"Date\":\"14 Jun 2017\",\"Time\":\"4:21PM\",\"body\":\"hello\",\"filePath\":\"\",\"isImportant\":\"N"; outgoing = 0; streamBareJidStr = "tester1@90.0.0.163"; thread = "2066797c-4f79-48f3-bd04-30658ee35e9f"; timestamp = "2017-06-14 11:20:41 +0000";变量的值时，Xcode会显示其类型为outgoing，其值为Any?。

some

Answer 1

如果您的字典值数据类型是Anyobject，则打开为NSNumber并转换为整数或bool

if let outgoing = message["outgoing"] {
       let convertedValue = Int(outgoing as! NSNumber)
        if convertedValue == 1 {
            isIncoming = false
            print("Incoming false")
        }
    }

示例：

 var messasge = [String: AnyObject]()
        messasge["outgoing"] = "1" as AnyObject;

        if let outgoing = messasge["outgoing"] {
           let convertedValue = Int(outgoing as! NSNumber)
            if convertedValue == 1 {
                print("Incoming false")
            }
        }

消息[“传出”]值数据类型为String：

 var messasge = [String: Any]()

  messasge["outgoing"] = "1" ;

 if let outgoing = messasge["outgoing"] as? String, outgoing == "1" {
     isIncoming = false
  }

消息[“传出”]值数据类型为Int：

 var messasge = [String: Any]()

 messasge["outgoing"] = 1 ;

 if let outgoing = messasge["outgoing"] as? Int, outgoing == 1 {
     isIncoming = false
  }

Answer 2

let outgoing : String = messasge.value(forKey: "outgoing")
let og = Int(outgoing)
if og == 1
{// isIncoming = false
}
else
{
  //isIncoming = true
}

如何检查swift 3中的变量值？

2 个答案: