treehouse full stack

14. Good sound Draft contest the judges are allowed to enter when scoring. Suppose, there are 10 judges. Let the 10 judges score, request, scores must be greater than 5 points, less than 10 points.Count = 1 whileCount : Fen= Int (Input ('Please rate the first {} judges:'. Format (count)) ifFen orFen >= 10:#Note that this is the or, not the and Print('Are you stupid?') Continue Else: Print('the first {} judges scored {}'. Format (count, Fen)) Count+ = 1Python3.6

15. Movie Voting: The program gives a list of several films that are currently being released. Voted by the user for each movie.Finally, the user's voting information is published in LST = [' Beijing meets Seattle ', ' Save Mr. Wu ', ' American past ', ' the beautiful legend of Sicily ']Result: {' Beijing meets Seattle ': 99, ' Save Mr. Wu ': 80, ' The American Past ': 6, ' The Beautiful Tales of Sicily ': 23}LST = ['Beijing meets Seattle','Save Mr. Wu','The American past','the beautiful legends

8. The following variables (TU is a meta-ancestor), please implement the required functions: Tu = ("Alex", [one, three, {"K1": ' V1 ', "K2": ["Age", "name"], "K3": (11,22,33)}, 44])A. Features that tell Ganso # The ancestor is a read-only listB. Can you tell me if the first element in the TU variable, "Alex", could be modified? #不能被修改C. What is the value of "K2" in the TU variable? Is it possible to be modified? If you can, add an element, "Seven", to theThe value for "K2" is a list and the appe

= {}2) dic = Dict ()3) dic = Dict.fromkey (key, value) #如果没有值, default is NoneTrap question TwoDic1 = Dict.fromkeys ([],[])print(dic1) dic1[1].append ('Alex ')print(dic1) #print(ID (dic1[1))) Print(ID (dic1[2)))print(ID (dic1[3)))Conversion of data typesint STR BOOL Three conversionsstr STR Dict.keys () dict.values () dict.items () list ()Tuple Dict---> Liststring conversion to list split# str---> List# S1 = ' Alex Wusir taibai '# L1 = S1.split ()# print (L1)# list ---> str the eleme

) = Age (1) + 2age (1) = 40We write a recursive function, which is:def Age (N): if n = =1 :return , else: return age (n-1 ) +2Print(age (4))Analyze this recursive function in stepsdefAge (1): if1 = = 4: return40elif1 >0 and1 : returnAge (+ 2)defAge (2): if2 = = 4: return40elif2 >0 and2 : returnAge (2+1) + 2defAge (3): if3 = = 4: return40elif3 >0 and3 : returnAge (3+1) + 2defAge (4): if4 = = 4: return40elif3 >0 and3

'Execute the program tail, open a subprocess, execute the program grep, open another subprocess, two processes based on pipe ' | ' Communication, tail the result as input to grep.The state of process grep while waiting for input (i.e. I/O) is called blocking, when the grep command cannot be runIn fact, in both cases, a process cannot be logically run,1. Process hangs is its own cause, encountering I/O blocking, it will let the CPU to allow other processes to execute, so that the CPU has been wo

① in terms of parameters:Map () Function:Map () contains two parameters, the first one is a function, the second is a sequence (list or tuple). Where a function (that is, a function of the first parameter position of a map) can receive one or more parameters.Reduce () function:The first parameter of reduce () is a function, and the second is a sequence (list or tuple). However, its function must receive two parameters.② from the numerical effect on the transfer in terms of:Map () is the function

There are many kinds of computing that can be done by computers, not just subtraction, it can do many operations like our human brain.Categories: arithmetic operations, comparison operations, logical operations, assignment operations, member operations, identity operations, bitwise operations, today we understand the top four first.Arithmetic operations:A=10,b=20Assignment operation:Comparison operation:Logical operation:Python full

(name.rjust(30,‘*‘))# print(name.zfill(50)) #用0填充#captalize,swapcase,title# name=‘eGon‘# print(name.capitalize()) #首字母大写,其余部分小写# print(name.swapcase()) #大小写翻转# msg=‘egon say hi‘# print(msg.title()) #每个单词的首字母大写#在python3中num0=‘4‘num1=b‘4‘#bytesnum2=u‘4‘#unicode,python3中无需加u就是unicodenum3=‘四‘#中文数字num4=‘Ⅳ‘#罗马数字#isdigt:str,bytes,unicode# print(num0.isdigit())# print(num1.isdigit())# print(num2.isdigit())# print(num3.isdigit())# print(num4.isdigit())#isdecimal:str,unicode# num0=‘4‘# num1=b‘4‘ #bytes# n

, # If there are no available connections in the connection pool, wait is blocked. True, wait, False, do not wait and then error maxusage=none, # The number of times a link is reused, None means unrestricted setsession=[], # The list of commands executed before the session starts. such as: ["Set Datestyle to ...", "Set time zone ..."] ping=0, # Ping the MySQL server, check if the service is available. # for example: 0 = None = never, 1 = default = Whenever it is requested, 2 = When a cursor is c

001000000000000111110010 Python3 no need to pay attention to Python2 each file appears in Chinese, the head must be input () input ("Please enter user name:") input ("Enter password:") waits for user input until the user enters. The variable name can only be made up of: letter number underscore special case: variable names cannot start with a number. You cannot use Python's keywords as varia

Class is an object and can be decorated like a functionDecorator for class. pydef deco (obj): print (' ====== ', obj) obj.x=1 obj.y=2 obj.z=3 return obj# @deco #test =deco ( Test) # DEF Test (): # print (' Test function run ')#运行了装饰器所以打印了装饰器里面的print内容 @deco #Foo =deco (Foo)#======class Foo: Pass#打印类的字典 where the XYZ attribute is defined in the adorner function as print (foo.__dict__) #{' __doc__ ': None, ' Z ': 3, ' Y ': 2, ' __dict__ ': This decorator is to pass the class

outside the function are global variables, such as $x and $y.Then to use them inside the function, you must use the Global keyword to declare that these two things are global variables before they can be used, otherwise the use of the OH.This must be remembered, because it is very useful, because we often need to use global variables when writing programs with functions.Let's take another look at the code: function myTest () { static$x=0; Echo $x ; $x+ +See here we see there is a

form to define the types of inputs.Then when the user clicks the Submit button, the form submits all the contents of the form to another page.So how do you know which page to submit the form to, and note that the page is written in the form's properties.name= "Input" action= "html_form_action.php" method = "Get" >That's it, action this property is written by the user click on the Submit button, the form of the data submitted to the page, this PHP file will usually be sent over the form of dat

background-size set above.The value of this property is as follows, one is the common CSS unit, percent% or pixel px can be.This background-size property of the CSS tutorial we do not see the first page, we have to go to the CSS reference manual to see the CSS properties, there is a list of CSS properties, for our reference.Of course background In addition to these commonly used properties, there are a few other less commonly used properties, can be found in the CSS property list.Today, our CSS

= None) "" "Replace" "" s = "Alex SB Alex" ret = S.replace ("Al", "BB") ("Al", "BB", from left to right first) p Rint (ret) # # #打印bbex SB Bbex Rstip (self,chars = None) "" "Split" "" s = "Alexalex" ret = S.split ("E") ("E", 1) print (ret) # # #打 Indian [' Al ', ' xal ' x '] Swapcase (self) "" "uppercase lowercase, lowercase to uppercase" "" s = Qiao print (S.swapcase ()) # # #打印qIAO Title (self) "" "Conversion title" " s =" The school "

Math-Defined FunctionsThe definition of a function: given a set of numbers a, a corresponding rule F is applied to a, recorded as F (a), to obtain another set of B, that is, b=f (a). Then the relation is called the function relation, short function. The concept of a function contains three elements: define domain A, range C, and corresponding law F. The core is the corresponding law F, which is the essential feature of the function relationship.Python-defined functionsdef test (x): # "comment

a subsequence in a string, and can be represented by a number representing the beginning of the search　　>>> test.count (' Z ')1　5,endswith judge whether the end of the door startswith>>> test.endswith (' a ')False>>> test.endswith (' N ')True6,find from the beginning, find the location number (starting at 0)>>> test.find (' H ')1>>> test.find (' A ')27,format string is formatted to replace the placeholder in the string with the specified value>>> test = ' I am {name} '>>> Test.format (name= ' Z

configuration. From React's basic, React-router and MOBX store, and complete a simple front-end demo. After these front-end configuration, we combine the service-side rendering, and also join the function of routing jump and data acquisition on the service side, to achieve the basic front-end isomorphism. At the same time we want to Cnodejs open API, so that our application can access the data. ...4th Chapter Business Developmentfrom here on, we enter the business development process. First we

parent element, or docked to the edge of the floating element already on the right3. Special effects caused by floating1. If the parent element does not display any of the floating child elements, the last one will be wrapped, but it may be stuck2. Once the elements are floating, they will become block-level elements.The elements in the row are allowed to change size once they float3, once the element is floating, the width will be determined by the content in the case of the specified width.4,