答案错了

讲了好多知识点，还有一些隐藏的知识点(如异步请求等 )都没学，这学习路线怎么怪怪的

from user import user_bp

app.register_blueprint(user_bp,url_prefix='/user')

这里要从view里导入吧，我只从user里导入为什么运行不到模板文件那里去呢

前一种方式在__init__.py文件里面为什么又要导入view.py呢

在实际开发过程中，是有的工具类直接导入，有的工具类用maven导入吗

老师，我启动8848 8858之后，再启动8868启动不起来，单独启动8868就可以，是不是内存不够了

2.htm.html

是不是考虑的不完整

用shell工具，命令模式退出，ZZ命令不按快点，没反应，还以为操作不对

url_for函数的第一个参数不是传方法名吗？写static为什么就能成引入静态资源了啊

public class TestStopTread implements Runnable{
    private boolean zhiling = true;
    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName()+"线程开始");
        int i=0;
        while (zhiling){
            System.out.println(Thread.currentThread().getName()+":"+i++);
            try {
                Thread.sleep(1000);
            } catch (Exception e) {
               e.printStackTrace();
            }
        }
        System.out.println(Thread.currentThread().getName()+"线程结束");
    }
    public void stop(){
        this.zhiling=false;
    }

    public static void main(String[] args) {
        System.out.println("主线程开始");
        TestStopTread tst = new TestStopTread();
        Thread t = new Thread(tst);
        try {
            System.in.read();
        } catch (Exception e) {
           e.printStackTrace();
        }
        tst.stop();
        System.out.println("线程结束");
    }
}
问什么运行的时候不显示循环体内容

老师 这个接口好像没了 

希望能尽快解决，不然工具用不了，买的课不就白买了

Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was

14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"

 One of the configured repositories failed (未知),

 and yum doesn't have enough cached data to continue. At this point the only

 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working

        upstream. This is most often useful if you are using a newer

        distribution release than is supported by the repository (and the

        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled

            yum --disablerepo=<repoid> ...

     4. Disable the repository permanently, so yum won't use it by default. Yum

        will then just ignore the repository until you permanently enable it

        again or use --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>

        or

            subscription-manager repos --disable=<repoid>

     5. Configure the failing repository to be skipped, if it is unavailable.

        Note that yum will try to contact the repo. when it runs most commands,

        so will have to try and fail each time (and thus. yum will be be much

        slower). If it is a very temporary problem though, this is often a nice

        compromise:

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64

软连接删除掉被链接的文件名就读不到内容，但硬链接可以，但是原文件删除了，硬链接还能读到内容的话，现在占用的内存地址什么时候才能释放，是硬连接解除后还是怎么

service下面好多个 X 怎么办

apache  mysql  filezilla tomcat 前面都是x

请问为什么这里的p矩阵是正交矩阵，我查资料发现这个只有当原矩阵为实对称矩阵时，才成立