mckinsey 7s

;Dispatch_once (oncetoken, ^{});Open an asynchronous task Group XXX can control what tasks are performed after all tasks are completedOpen an asynchronous task to execute after xx secondsDispatch_after (Dispatch_time (Dispatch_time_now, (int64_t) (5 * nsec_per_sec)), Dispatch_get_main_queue (), ^{});Group Task Group is a task group that can add multiple tasks to himdispatch_group_t group = Dispatch_group_create ();Add Task 7s Finish/Task group//Priori

; -webkit-transform:rotate (45DEG); Transform:rotate (45DEG); -webkit-animation-delay:. 4s;}. line3 {top:18px; left:57px; -webkit-transform:rotate (90DEG); Transform:rotate (90DEG); -webkit-animation-delay:. 5s;}. line4 {top:31px; left:52px; -webkit-transform:rotate (135DEG); Transform:rotate (135DEG); -webkit-animation-delay:. 6s;}. line5 {top:37px; -webkit-animation-delay:. 7s;}. Line6 {top

1 ImportSocket2 ImportPlatform4 5 defGetIP ():6 Try:7s =Socket.socket (socket.af_inet, socket. SOCK_DGRAM)8S.connect (('www.baidu.com', 0))9IP =s.getsockname () [0]Ten except: OneIP ="x.x.x.x" A finally: - s.close () - returnIP the - if __name__=="__main__": -IP_Address ="0.0.0.0" -Sysstr =Platform.system () + ifSysstr = ="Windows": -IP_Address =Socket.gethostbyname (Socket.gethostname ()) + Print "Windows @"+IP_Address A

Original Address: Http://blog.laofu.online/2017/06/26/producters-consumers/sceneThere is a scenario where the program has a very time-consuming operation, but requires a time-consuming operation to perform a time-consuming operation in sequence, and the invocation of the program may be in the same situation.The specific model is as Follows:Starting from start, 5 threads are triggered and executed at the same time by a longtimejob, we do not care about Longjob execution time and sequencing, and e

1104:0 starting point algorithm 11--trapezoid area time limit:1 Sec Memory limit:64 MB 64bit IO Format:%lldsubmitted:6473 accepted:1875[Submit] [Status] [Web Board] DescriptionWater problemInputEnter 3 floating-point numbers, representing the top, bottom, and height, separated by commas (the title contains multiple sets of data)OutputOutput trapezoid area, reserved 2 decimal placesSample Input2,4,5Sample Output15.00HINTNote the input statement, separated by a comma between 3 numbersSour

of the function to obtain each parameter passed to the function.In fact, the arguments object is just like an array, so you can access each of its elements using the square bracket syntax, using the Length property to determine how many arguments are passed in.Another important feature is that named parameters are only convenient, but not required. In addition, in terms of named parameters, other languages may need to create a function signature beforehand, and future calls must be consistent w

; Left:0;Top:0;cursor:Pointer;}. Pic1 Li{width:50%;Height:50%;Overflow:Hidden;float: Left;position:relative;}/*pic1 Stitching Pictures*/. Pic1 li img{position:Absolute;width:260px;Height:200px;}. Grid-box:hover. Pic2,. Pic2,. Pic1 img{transition:All . 7s Ease;}. Pic1 li:nth-of-type (1) img{ Left:0;Top:0;}. Pic1 li:nth-of-type (2) img{ Left:-130px;}. Pic1 li:nth-of-type (3) img{ Left:0;Top:-100px;}. Pic1 li:nth-of-type (4) img{ Left:-130px;Top:-100px;}

is blocked by the script file, another lightweight parser will continue to browse the remaining tags, looking for resources to download i.e. Style files, script files, pictures, etc.Once found, the Preloader can start to receive these resources in the background, waiting for the main parser to complete the current script operation, the other resources have been downloaded, thus reducing the performance loss caused by script blocking.below this waterfall flow is opened with IE8 in the link the r

Demand:Converts 20141126010101 format UTC time to local time.Searching the internet for a long time did not find the perfect solution. Some refer to third-party libraries, which requires the installation of third-party software on the Web. This is a must. Because the real environment does not necessarily allow you to use the root user to install the Python module. Finally found a perfect solution without external modules, put it here to share with you.1 #!/usr/bin/python2 3 ImportOs,sys,datetime

1, exception: ' ASCII ' codec can ' t encode charactersCharacter set problem, add two sentences before the file:Import SysReload (SYS)Sys.setdefaultencoding ("Utf-8")2,the ' \xa0 ' character in Unicode has a problem converting to GBK encoding, GBK cannot convert ' \xa0 ' characters.Therefore, some pre-actions are required when converting:String.Replace (U ' \xa0 ', U ')Replace ' \xa0 ' with a ' u ' space.31 #!/usr/bin/env python2 #Coding=utf-83s=raw_input ()4 PrintS,type (s), Len (s)5S=s.decode

configuration will be loaded. Don't throw up the groove Why should I use Java's own log class in Springboot, because the project is a combination of multiple projects. There are many ways to read this without Classpathresource classes, such as file manipulation, no longer described.Configuration fileAfter that, we can write the configuration file in the corresponding directory:#handlerhandlers= Java.util.logging.ConsoleHandler#全局日志等级. level= INFO#输出日志文件名格式Java.util.logging.FileHandler.pattern =

1. Variable Exchange　　1#include 2 intMain ()3 {4 voidSwapint*a,int*B);//declaring a swap function5 intx=3, y=4;6Swap (x,y);7printf"%d,%d\n", x, y);8 getch ();9 }Ten voidSwapint*a,int*b) One { A intC; -c=*A; -*a=*b; the*b=C; -}2. Implement 1+2+3+4+...+n in C languageLaw One:1#include 2 intMain ()3 {4 intAddintn);//declaring an Add function5 intn,s;6scanf"%d",n);7s=add (n);8printf"%d", s);9 GetChar ();Ten } One intAddintN) A { - intsum=0; -

)#define Core_initcall (FN) __define_initcall (FN, 1)#define CORE_INITCALL_SYNC (FN) __define_initcall (FN, 1s)#define Postcore_initcall (FN) __define_initcall (FN, 2)#define POSTCORE_INITCALL_SYNC (FN) __define_initcall (FN, 2s)#define Arch_initcall (FN) __define_initcall (FN, 3)#define ARCH_INITCALL_SYNC (FN) __define_initcall (FN, 3s)#define Subsys_initcall (FN) __define_initcall (FN, 4)#define SUBSYS_INITCALL_SYNC (FN) __define_initcall (FN, 4s)#define Fs_initcall (FN) __define_initcall (FN,

find return-1Index indexed by element, no error found1 s8 = s.find ('a')2 s81 = S.index ('a' )Strip default delete before and after space Lstrip (left delete) Rstrip (right delete)In Lstrip (), you can add content to be deleted (only for the front and back content is not for intermediate content) (can be used in user input processing and database data comparison)It works by cleaning up the contents of the strip () and encountering a different stop cleanup1Username = input ('Please enter your fi

The first two articles briefly introduce some common methods of scientific computing numpy, and some other content that will be learned in later examples. Another module,--matplotlib, is described below.Matplotlib is a Python 2D drawing library that tries to make complex drawing visualizations easier. A few lines of code can generate drawings, histograms, power spectra, bar charts, error plots, scatter plots and other 2D graphics, which we often use in the process of data analysis, the analysis

Print 'the divisor cannot be 0! '8Sys.exit ()View Code2, throw an exception using the raise statement:1 classShortinput (Exception):2 def __init__(self,length,atleast):3Exception.__init__(self)4Self.length=length5self.atleast=atleast6 Try:7S=raw_input ('Enter sth-->')8 ifLen (s) :9 RaiseShortinput (Len (s), 3)Ten exceptEoferror: One Print '\nwhy did you do a EOF on me?' A exceptshortinput,x: - Print 'The input was of lengt

(time_st,format='%y%m%d%h%m%s'): the #20181128113859 - #This function is a well-formed time, a time-stamped -T=time.strptime (Time_st,format)#turn formatted time into a time tuple -res = Time.mktime (t)#time-tuple into timestamp + returnRes2, HashlibMD5 encryption is irreversible and cannot be decrypted.1 ' AAAA ' 2 Print # output: B ' aaaa ' 3 m =hashlib.md5 ()4# encryption, cannot transfer string, only binary type, bytes5 Print# results after encryptionCrash Library: Some URLs ca

the grid standard of the UED team or the vertical grid when making prototypes. In this way, for visual designers, they can reduce the burden of pixel alignment, for the front-end engineers, apply the appropriate code to complete the layout of the standard grid. Of course, there are many standards and norms, such as: Some companies have interactive guide-line, can maintain the overall product image consistency, reduce the user's cognitive burden. Feasibility: This means that in the process of d

blocked by the script file, another lightweight parser will continue to browse the remaining tags, looking for resources to download i.e. Style files, script files, pictures, etc.Once found, the Preloader can start to receive these resources in the background, waiting for the main parser to complete the current script operation, the other resources have been downloaded, thus reducing the performance loss caused by script blocking.The following waterfall flow is the result of using IE8 to open t

Count (*) DBCC dropcleanbuffers DBCC Freeproccache ----Test One: (7s) Execution plan: Table scan-> flow polymerization-> compute vector DECLARE @COUNT INT SELECT @COUNT =count (*) from check2_t1 WHERE c1= ' C1 '--1w strip data IF @COUNT >0 BEGIN PRINT ' S ' End ----test two: (0s) execution plan: Constant scan/table scan-> nested loops-> COMPUTE scalar IF EXISTS (SELECT 1 from check2_t1 WHERE c1= ' C1 ')--1w bar data BEGIN PRINT ' S '