We often hear people say, professional attitude, I believe that everyone has their own understanding of professional attitude.So, as a programmer, what is our professional attitude?Uncle Martin combined his experience with the full body of the skill, wrote a "Programmer's professional Training" to explore the problem.Or the same recipe, the same taste, Uncle Martin first gave a failed example, about his young when he quit his job and forced to go back to work after the loss of wages.This book is
Funny group: The content is very rich, in the first stage sprint did well, but things are not categorized, the interface is not very good, a bit messy. --We are sorting out the goods ~XY Engineering Group: The user interface is done well, the product function is also good, the web is done well, summed up deeply, but have not seen how the backstage. --due to the lack of theoretical knowledge learning,There's something we can't do in the background, but we're trying.Little monster: The interface i
#CODING=GBK" "Select User feedback items will score >3 defined as like" "ImportPandas as PDImportNumPy as NPImportCopy#get the degree of differentiationdefGetdiff (Userrates,movie): like=dict () Dislike=dict () Unknown=dict () Likearray=[] Dislikearray=[] Unknownarray=[] forUser,ratingsinchUserrates.items ():ifMovie not inchRatings:unknown[user]=Ratings forMv,ratinginchRatings.items (): Unknownarray.append (rating)elifRatings[movie]>3: Like[user]=
Any program is information collection, processing, storage, feedback1. Entry selection, data collection (who is authorized)2 data processing, filter out what to use (information filtering, permissions who to deal with, which portal to which to deal with)3 Data Storage (1) Save to database(2) Save to the information pool sent to the front end, not collected into the database in the backgroundUnderstanding of the databaseFor the general procedure, increase to one, delete as one, check for one.As f
very important.In the "Past to solve the minor difficulties of some breakthroughs" and "Silver Bullet Hope" chapter, from the concept of the development of software, in which the "expert system" reminds me of a sci-fi film, forget the name of the film, there is a plot is roughly the case, a very experienced director after death, a more excellent subordinate successor, But then there was a very powerful enemy, the new director can not defeat the enemy in any event, then remembered the former sup
The form does not need to be submitted with verification, which is very suitable for feedback. The specific implementation includes various functional code as follows. If you like it, you can refer to the js file to view the source code.
XML/HTML Code
The Code is as follows:
JavaScript Code
The Code is as follows:
The validity object of a form control object can set or return related validation information (Gets the validity object in invalid event processing):
Property valid: True for all validations passed, for false at least one validation failure.
Property Valuemissing: The property value is true when the form control input value is null, and the property value is false when it is not empty.
Property Typemismatch: This property is true if the input content does not conform to the contr
receives1 // reads the object returned by the service side 2 BufferedReader Bufrin =new bufferedreader (new InputStreamReader (S.getinputstream ())); 3 String str=bufrin.readline (); 4 System.out.println (str);Difference:1.PrintWriter as a convenient conversion between the word stream and the character stream tool, has encapsulated the conversion method, directly use it to write back, no longer use GetBytes () to convert to a byte stream.2. When the data is received, if
Arithmeticexecption
Arithmetic Exception class
NullPointerException
Null pointer exception class
ClassCastException
Type cast exception
Negativearrayexception
Array negative Subscript exception
Nosuchmethodexception
Method not found to theThis exception is thrown when a non-existent method of a class is accessed
ArrayIndexOutOfBoundsException
under Array label out of bounds exceptionThrown when th
Unavailable) server is not currently available (due to overloading or downtime maintenance). Typically, this is only a temporary state. The HTTP status Code 504 (gateway Timeout) server acts as a gateway or proxy, but does not receive requests from the upstream server in a timely manner. HTTP status Code 505 (HTTP version not supported) The http protocol version used in the request is not supported by the server.This article is from the "Little Rookie" blog, please be sure to keep this source h
Record the function of a page:TextView placeholder, Word count, submit button interactive settings, as follows:Input effect:The specific implementation code is as follows:1, setting up the proxy@interface Fkviewcontroller () 2, I am the direct xib drag control@property (Weak, nonatomic) iboutlet Uitextview ***stringlenghtlab;3,viewdidload insideSelf. Fktextview. delegate = self ; = NO; = NO; = [Uicolor Lightgraycolor];4, the specific agent method to achieve-(void) Textviewdidchange:
teeth ;}Else{brush your teeth first and then wear clothes ;}you start programming ;you can develop to the programmer ;}End}Three:public class Chengxu{BeginIf ( you want to complete a program ){Then{Analyze the logic and dependency of the program ;code Implementation ;}}End}Four sections:public class Yuyan{BeginIf ( you are familiar with a programming language ){Then{The programming language only likes and dislikes the question, does not have the question, the other language difference only lies
to a subset of features.4) wrapper (wrapper). Provides a wrapper that exposes only the wrapper, thereby restricting access to objects in it.PS: This principle corresponds to principle 26 in "Effective C # Second Edition".Principle 21Handling base class updates with the new modifier onlyUse the new operator to decorate a class member to redefine a non-virtual member that inherits from the base class.The new modifier is only used to resolve a conflict between the base class method and the derived
same time char and varchar The biggest difference is that char regardless of the actual value will occupy n characters space, and varchar will only occupy the actual character should occupy +1 of the space, and the actual space +13. After the n setting of char and varchar is exceeded, the string is truncated.The upper limit of 4.char is 255 bytes, the upper bound of varchar is 65535 bytes, and the text is capped at 65535.5.char will truncate the trailing spaces when stored, varchar and text wil
Sometimes a blank form is sent to the customer, because nothing is filled out directly. Oh, how bad.Introduces 2 functions, Isset and empty. Isset returns True for the assigned variable, regardless of the value assigned, the empty string is also true;empty when the parameter inside is null is the return true;The null value has null, ' ', 0,false.This will not be able to respond when the user submits the empty item. Should be in the client with JS first to deal with, and then PHP processing, PHP
Script monitoring:The process that gets the maximum number of handles:Link Analysis:Script fragment:Case"$handle" inch2) echo"The handle of the process:"Echo" "Handle| Awk'{print $ "\ n" \ n "\ $7" \ n " $9" \ n "$11" \ n "}'>Temp forIinch' Cat temp
Today, I am honored to go with the company's leaders to visit the 2012 China Shenzhen International Internet of Things Technology and application Expo, there are some gains in general.
1, realize that the future of hotels, villas, venues and even
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