自定义命令flask-script用于实现类似于django中python3manage.pyrunserver...类似的命令,用命令行启动项目首先安装：pip3installflask_script使用  (注意我这里的文件名取shell-ma,文件名随便取)fromflaskimportFla...

Aninorderbinarytreetraversalcanbeimplementedinanon-recursivewaywithastack.Forexample,supposethatwhena6-nodebinarytree(withthekeysnumberedfrom1to6)istraversed,th...

wait()函数：回收僵尸进程父进程调用wait函数可以回收子进程终止信息。该函数有三个功能：1）阻塞等待子进程退出2）回收子进程残留资源3）获取子进程结束状态（退出原因）/***zoom_test.c***/#include<stdio.h>#include<stdlib.h>#include...

Aninorderbinarytreetraversalcanbeimplementedinanon-recursivewaywithastack.Forexample,supposethatwhena6-nodebinarytree(withthekeysnumberedfrom1to6)istraversed,th...

Givensomesegmentsofrope,youaresupposedtochainthemintoonerope.Eachtimeyoumayonlyfoldtwosegmentsintoloopsandchainthemintoonepiece,asshownbythefigure.Theresultingc...

Aninorderbinarytreetraversalcanbeimplementedinanon-recursivewaywithastack.Forexample,supposethatwhena6-nodebinarytree(withthekeysnumberedfrom1to6)istraversed,th...

SupposeabankhasNwindowsopenforservice.Thereisayellowlineinfrontofthewindowswhichdevidesthewaitingareaintotwoparts.Therulesforthecustomerstowaitinlineare:Thespac...

Asupplychainisanetworkofretailers（零售商）,distributors（经销商）,andsuppliers（供应商）--everyoneinvolvedinmovingaproductfromsuppliertocustomer.Startingfromonerootsupplier,e...

Asupplychainisanetworkofretailers（零售商）,distributors（经销商）,andsuppliers（供应商）--everyoneinvolvedinmovingaproductfromsuppliertocustomer.Startingfromonerootsupplier,e...

Asupplychainisanetworkofretailers（零售商）,distributors（经销商）,andsuppliers（供应商）--everyoneinvolvedinmovingaproductfromsuppliertocustomer.Startingfromonerootsupplier,e...

Asupplychainisanetworkofretailers（零售商）,distributors（经销商）,andsuppliers（供应商）--everyoneinvolvedinmovingaproductfromsuppliertocustomer.Startingfromonerootsupplier,e...

Aninorderbinarytreetraversalcanbeimplementedinanon-recursivewaywithastack.Forexample,supposethatwhena6-nodebinarytree(withthekeysnumberedfrom1to6)istraversed,th...

解决Vue编译和打包时频繁内存溢出情况CALL_AND_RETRY_LASTAllocationfailed-JavaScriptheapoutofmemory如上图所示：频繁出现此种情况，项目太大，导致内存溢出，排除代码问题外，可参照以下方式解决第一步:  全局安装 increase-m...

1,sleep方法是Thread类的静态方法,wait()是Object超类的成员方法 2,sleep()方法导致了程序暂停执行指定的时间，让出cpu该其他线程，但是他的监控状态依然保持者，当指定的时间到了又会自动恢复运行状态。在调用sleep()方法的过程中，线程不会释放对象锁。而当调用wait()方法的时...

1、wait()、notify/notifyAll()方法是Object的本地final方法，无法被重写。 2、wait()使当前线程阻塞，前提是必须先获得锁，一般配合synchronized关键字使用，即，一般在synchronized同步代码块里使用wait()、notify/notifyAll()方法。...