这段代码需看不懂，只是大概知道生成了一种数组，用来训练模型，但是数组的形式和每行的含义不清楚。

UsersMapper.xml

select from users
    select from users where userid = #{suibian}

老师好，我有问题想不通。字典中存的键值对不是没有任何有关顺序的概念吗，完全是随机的。那么我们用序列解包时，让多个变量分别接收字典里的键值对时，为什么总能按照一定的顺序接收，而不是随机的。老师辛苦了，谢谢。

老师请问一下，为什么我的软件安装不上?是安装路径有问题吗?

1.座机号分为区号和后面七位或者八位，后面的第一位不能是0；

老师驱动也在里面，之前的测试都好好的，就查询出了问题，最后结果是空值

老师，这个是做什么的？直接全部勾选就行了吗

老师html里面  th:报错怎么解决  虽然能跑看着有点不舒服 

tkinter *
webbrowser

(Frame):

    (,master=):
        ().(master)
        .master = master
        .pack()
        .createWidget()

    ():
        .w1 =Text(root,=,=,=)
        .w1.pack()

        .w1.insert(,)
        .w1.insert(,)

        Button(,=,=.insertText).pack(=)
        Button(,=,=.returnText).pack(=)
        Button(, =, =.addWidget).pack(=)
        Button(, =, =.textTag).pack(=)

    ():
        .w1.insert(INSERT,)
        .w1.insert(END,)

    ():
        (.w1.get(,))
        .w1.insert(,)
        (+.w1.get(,END))

    ():
        b1 = Button(.w1,=)
        .w1.window_create(INSERT,=b1)

    ():
        .w1.delete(,END)
        .w1.insert(INSERT,)
        .w1.tag_add(,,)
        .w1.tag_config(,=,=)

    (,):
        webbrowser.open()


__name__ == :
    root = Tk()
    root.geometry()
    app = Application(=root)
    root.mainloop()

结果：

File "C:/Users/魏胖子/PycharmProjects/gui/my07.py", line 51, in <module>

    app = Application(master=root)

  File "C:/Users/魏胖子/PycharmProjects/gui/my07.py", line 11, in __init__

    self.createWidget()

AttributeError: 'Application' object has no attribute 'createWidget'

Process finished with exit code 1

2、第二个问题是怎么在pycharm中插入图片

老师，这个错误是怎么回事？我之前把一个写过的包名改了，然后再写别的就出现这种情况

是改了包名，没自动注入吗？

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'tbItemParamController': Unsatisfied dependency expressed through field 'tbItemParamService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tbItemParamServiceImpl': Injection of @Reference dependencies is failed; nested exception is java.lang.IllegalStateException: Failed to check the status of the service com.ego.dubbo.service.TbItemParamDubboService. No provider available for the service com.ego.dubbo.service.TbItemParamDubboService from the url zookeeper://192.168.8.128:2181/org.apache.dubbo.registry.RegistryService?application=ego-manage&dubbo=2.0.2&init=false&interface=com.ego.dubbo.service.TbItemParamDubboService&methods=selectCount,selectByPage&pid=7588&qos.enable=false&register.ip=192.168.1.101&release=2.7.5&side=consumer&sticky=false&timestamp=1616666460363 to the consumer 192.168.1.101 use dubbo version 2.7.5

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.5.RELEASE.jar:2.2.5.RELEASE]

at com.ego.ManageApplication.main(ManageApplication.java:10) [classes/:na]

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tbItemParamServiceImpl': Injection of @Reference dependencies is failed; nested exception is java.lang.IllegalStateException: Failed to check the status of the service com.ego.dubbo.service.TbItemParamDubboService. No provider available for the service com.ego.dubbo.service.TbItemParamDubboService from the url zookeeper://192.168.8.128:2181/org.apache.dubbo.registry.RegistryService?application=ego-manage&dubbo=2.0.2&init=false&interface=com.ego.dubbo.service.TbItemParamDubboService&methods=selectCount,selectByPage&pid=7588&qos.enable=false&register.ip=192.168.1.101&release=2.7.5&side=consumer&sticky=false&timestamp=1616666460363 to the consumer 192.168.1.101 use dubbo version 2.7.5

at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.postProcessPropertyValues(AbstractAnnotationBeanPostProcessor.java:145) ~[spring-context-support-1.0.5.jar:na]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1427) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

... 19 common frames omitted

Caused by: java.lang.IllegalStateException: Failed to check the status of the service com.ego.dubbo.service.TbItemParamDubboService. No provider available for the service com.ego.dubbo.service.TbItemParamDubboService from the url zookeeper://192.168.8.128:2181/org.apache.dubbo.registry.RegistryService?application=ego-manage&dubbo=2.0.2&init=false&interface=com.ego.dubbo.service.TbItemParamDubboService&methods=selectCount,selectByPage&pid=7588&qos.enable=false&register.ip=192.168.1.101&release=2.7.5&side=consumer&sticky=false&timestamp=1616666460363 to the consumer 192.168.1.101 use dubbo version 2.7.5

at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:355) ~[dubbo-2.7.5.jar:2.7.5]

at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:266) ~[dubbo-2.7.5.jar:2.7.5]

at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:151) ~[dubbo-2.7.5.jar:2.7.5]

at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.getOrCreateProxy(ReferenceAnnotationBeanPostProcessor.java:249) ~[dubbo-2.7.5.jar:2.7.5]

at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.doGetInjectedBean(ReferenceAnnotationBeanPostProcessor.java:142) ~[dubbo-2.7.5.jar:2.7.5]

at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.getInjectedObject(AbstractAnnotationBeanPostProcessor.java:358) ~[spring-context-support-1.0.5.jar:na]

at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor$AnnotatedFieldElement.inject(AbstractAnnotationBeanPostProcessor.java:538) ~[spring-context-support-1.0.5.jar:na]

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]

at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.postProcessPropertyValues(AbstractAnnotationBeanPostProcessor.java:141) ~[spring-context-support-1.0.5.jar:na]

... 30 common frames omitted

问题如下：

如何爬取每个城市的数字编号？

网址：51job招聘网

要爬出这种结果：如何爬?

刚刚那个代码，我粘过去好像是乱的，重新粘一下：

public class Test04 {
    public static void main(String[] args) {
        int[] arr = {0,3,1,2,5,4};
        long start = System.currentTimeMillis();
        List repeatNumber = getRepeatNumber1(arr);
        long end = System.currentTimeMillis();
        System.out.println(repeatNumber);
        System.out.println(end-start);

    }


    public static List<Integer> getRepeatNumber1(int[] arr){
        List<Integer> list = new ArrayList<>();

        //判断数组是否为空
        if(arr == null || arr.length == 0){
            list.add(-1);
            return list;
        }

        //通过循环遍历数组中的元素
        for(int i =0;i<arr.length;){
            //判断元素是否合法
            if(arr[i] < 0 || arr[i] >= arr.length){
                list.add(-1);
                return list;
            }

            if(arr[i] == i){
                i++;
            }else {
                if(arr[i] == arr[arr[i]]){
                    if(!list.contains(arr[i])){
                        list.add(arr[i]);
                    }else {
                        i++;
                    }
                } else {
                    int temp = arr[i];
                    arr[i] = arr[arr[i]];
                    arr[temp] = temp;
                }
            }
        }

        if(list.size()==0){
            list.add(-1);
            return list;
        }else {
            return list;
        }
    }


    public static List<Integer> getRepeatNumber2(int[] arr){
        List<Integer> list = new ArrayList();
        for (int i = 0;i<arr.length;i++){
            for (int j = i+1 ;j<arr.length;j++){
                if(arr[i] == arr[j]){
                    if(!list.contains(arr[i])){
                        list.add(arr[i]);
                    }
                    break;
                }
            }
        }
        return list;
    }


}

老师，这个打包好了怎么部署到tomcat上？ 我看打包下来的是jar包，我可以直接用java -jar 来运行，但是我把他放在tomcat的webapps下没办法运行

我代码没有问题，但飞机就是不动，这是为什么啊

老师，这个log从上到下就是文件的各种版本，那么现在的版本就是Head->master吗？