• Clang 拾遗之objc_designated_initializer

    这个attribute的目的其实是在初始化类的实例时,无论调用关系如何复杂,必须调用一次该类的Designated intializer(可以有多个),对于 Designated intializer,必须调用父类的Designated intializer。对于父类的父类...
    文章 2016-02-18 6039浏览量
  • 网络子系统33_网桥设备的配置更新

    br_designated_port_selection(br);选择指定端口 } 选择根端口 调用路径:br_configuration_update->br_root_selection 函数主要任务: 1.遍历所有端口,选择具备成为根端口的端口 2.没有选择出根端口,...
    文章 2013-10-04 1036浏览量
  • 【我们都爱Paul Hegarty】斯坦福IOS8公开课个人笔记6 ...

    一个Designated Initializer只能调用它父类中的Designated Initializer,这是一个非常重要的规则,如果有一个Designated Initializer,它的前面没有convenience这个单词,必须在init中调用父类的init而不能调用自身...
    文章 2015-04-13 765浏览量
  • Swift 2 语言精要-Initialization and ...

    Designated(i.e.,main)initializer init(){ print("I've been created!} Convenience initializer,required to call the designated initializer(above) convenience init(text:String){ self.init()/this is ...
    文章 2016-03-28 669浏览量
  • Swift学习这十七:重载(override)

    designated initializer init(){ numberOfWheels=0 maxPassengers=2 println("call vehicle designated initializer") self.nothingToDo() } func description(){ println("Vehicle has(umberOfWheels)wheels and ...
    文章 2014-06-10 1160浏览量
  • Form of address 0001 not designated for ...

    Form of address 0001 not designated for organizationI have tried to download a customer from ERP to CRM via request download.After request download is finished,I saw error message in tcode SMW01:The ...
    文章 2021-11-27 48浏览量
  • 一个坑:java.sql.ResultSet.getInt=》the column ...

    Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language. Parameters: columnLabel the label for the column specified with ...
    文章 2014-09-10 818浏览量
  • Swift中构造方法的解析

    2.如果子类复写了父类某一构造方法,则子类默认不在继承所有父类的构造方法,对于Designated类型的构造方法,子类复写了哪些,哪些才能够被使用,对于Convenienve类型的构造方法,子类复写的其调用的Designated构造...
    文章 2016-05-06 2083浏览量
  • iOS:聊聊 Designated Initializer(指定初始化函数)

    iOS:聊聊 Designated Initializer指定初始化函数 一、iOS的对象创建和初始化 iOS 中对象创建是分两步完成 分配内存 初始化对象的成员变量 我们最熟悉的创建NSObject对象的过程 苹果官方有一副图片更生动的描述了这个...
    文章 2016-03-28 1226浏览量
  • OSPF邻居认证实际案例(配图)+详细验证过程

    Backup Designated router(ID)192.1.1.1,Interface address 192.1.1.1 Timer intervals configured,Hello 10,Dead 40,Wait 40,Retransmit 5 Hello due in 00:00:06 Index 1/1,flood queue length 0 Next 0x0(0)/0x0...
    文章 2017-11-16 1328浏览量
  • Swift中构造方法的解析

    三、Designated构造方法与Convenience构造方法 Swift中的构造方法分为Designated构造方法与Convenience构造方法两类&xff0c;Designated构造方法也被称为指定构造方法&xff0c;Convenience构造方法也被称为方便构造方法...
    文章 2021-11-04 43浏览量
  • IEEE 802.1d生成树协议小解

    a)Has already been selected as the Designated Port for the LAN to which it is attached,i.e.,the value of the Designated Bridge and Designated Port parameters held for the Port are the same as that of...
    文章 2017-11-12 921浏览量
  • Google Earth Engine ——数据全解析专辑(BLM AIM ...

    native invasive status and growth form are designated by local natural resource specialists,often after consulting the USDA PLANTS database.InvPerenForbGrassCover_AHDoubleThe cover of non-native ...
    文章 2022-04-26 61浏览量
  • 比较ospf的5种网络类型,不同的ospf网络类型能否建立...

    Backup Designated router(ID)3.3.3.3,Interface address 192.168.1.3 Timer intervals configured,Hello 10,Dead 40,Wait 40,Retransmit 5 oob-resync timeout 40 Hello due in 00:00:01 Index 1/1,flood queue ...
    文章 2017-11-22 2149浏览量
  • rapid-pvst向mstp迁移

    00:48:50:RSTP(19):Fa0/1 is now designated 在root层迁移过程中,2924的vlan19接收不到2948的vlan19的bpdu信息,所以自认为root bridge。后面的vlan20和21同样如此。00:48:50:RSTP(20):Fa0/1 rcvd info expired 00:...
    文章 2017-11-09 2058浏览量
  • java.sql.ResultSetMetaData.getColumnLabel和...

    Gets the designated column's suggested title for use in printouts and displays.The suggested title is usually specified by the SQL AS clause.If a SQL AS is not specified,the value returned from ...
    文章 2016-11-16 812浏览量
  • java.sql.ResultSetMetaData.getColumnLabel和...

    Gets the designated column's suggested title for use in printouts and displays.The suggested title is usually specified by the SQL AS clause.If a SQL AS is not specified,the value returned from ...
    文章 2014-11-13 917浏览量
  • OSPF 路由协议三

    Backup Designated Router&xff09;xff1b;2、路由器接口的优先级Priority 将影响接口在选举DR 时所具有的资格。优先级为0 的路由器不会被选举为DR 或BDR&xff1b;3、DR 由本网段中所有路由器共同选举。Priority 大于0 的...
    文章 2022-12-15 40浏览量
  • 在NBMA网络非广播模式下配置OSPF实际案例(配图)+...

    Designated Router(ID)3.3.3.3,Interface address 192.1.1.3 No backup designated router on this network Timer intervals configured,Hello 30,Dead 120,Wait 120,Retransmit 5 Hello due in 00:00:27 Index 2/2,...
    文章 2017-11-17 846浏览量
  • 在NBMA网络广播模式下配置OSPF实际案例(配图)+详细...

    Transmit Delay is 1 sec,State DROTHER,Priority 0 Designated Router(ID)3.3.3.3,Interface address 192.1.1.3 No backup designated router on this network Timer intervals configured,Hello 10,Dead 40,Wait ...
    文章 2017-11-16 1129浏览量
  • 广播多路访问链路上的OSPF

    Backup Designated router(ID)3.3.3.3,Interface address 192.168.1.3 BDR的路由器ID和接口地址;Timer intervals configured,Hello 10,Dead 40,Wait 40,Retransmit 5 oob-resync timeout 40 Hello due in 00:00:09 ...
    文章 2017-11-23 1035浏览量
  • SAP WM RF Define Queues Within the Warehouse

    functions through the system guided process,each distinct area of warehouse should be designated a unique queue. In the above example,warehouse operatives can be assigned to the individual areas ...
    文章 2015-10-09 1067浏览量
  • 今天无意中发现的WWW.threadPriority

    Get the designated main asset and instantiate it. Instantiate(www.assetBundle.mainAsset);} https://docs.unity3d.com/ScriptReference/WWW-threadPriority.html WWW居然还有这功能,可以考虑来做优化
    文章 2017-04-27 795浏览量
  • 今天无意中发现的WWW.threadPriority

    Get the designated main asset and instantiate it. Instantiate(www.assetBundle.mainAsset);} https://docs.unity3d.com/ScriptReference/WWW-threadPriority.html WWW居然还有这功能,可以考虑来做优化本文转自...
    文章 2017-11-26 699浏览量
  • iOS工程中删除默认的并使用自建的ViewController后...

    Failed to instantiate the default view controller for UIMainStoryboardFile‘MainStoryboard’-perhaps the designated entry point is not set?原因 这个问题的原因是没有为你的StoryBoard指定一个初始的View ...
    文章 2015-07-28 1300浏览量
  • STP工作原理

    选择指定端口(Designated Ports)生成树机理: 每个STP实例中有一个根网桥:网桥id最小,MAC地址最小 每个非根网桥上都有一个根端口:到根桥cost最小的 每个网段有一个指定端口:端口接受的BPDU优先级低于发出BPDU...
    文章 2017-11-15 788浏览量
  • STP工作原理

    选择指定端口(Designated Ports)生成树机理: 每个STP实例中有一个根网桥:网桥id最小,MAC地址最小 每个非根网桥上都有一个根端口:到根桥cost最小的 每个网段有一个指定端口:端口接受的BPDU优先级低于发出BPDU...
    文章 2017-11-15 1023浏览量
  • 错误消息Form of address 0001 not designated for ...

    I have tried to download a customer from ERP to CRM via request download.After request download is finished,I saw error message in tcode SMW01: The customer being download is created in tcode VD01 in ...
    文章 2020-01-29 655浏览量
  • BSCI—9:配置OSPF认证

    Backup Designated Router(ID)2.2.2.2,Interface address 192.168.1.2 Timer intervals configured,Hello 10,Dead 40,Wait 40,Retransmit 5 Hello due in 00:00:07 Index 1/1,flood queue length 0...
    文章 2017-11-08 958浏览量
  • CCNP实验4-2:配置多区域和NBMA OSPF

    Designated Router(ID)172.31.1.3,Interface address 172.31.1.3 No backup designated router on this network Timer intervals configured,Hello 30,Dead 120,Wait 120,Retransmit 5 oob-resync timeout 120 Hello...
    文章 2017-11-09 1083浏览量
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