ternary

Collection:#一种数据类型, there is the function of the heavy, disorderly (can not be based on the subscript to take the value)Two methods of defining collections:1: First define a list and then convert to a collection by forcing the typea=[1,2,3,4,4,5]

Three-dimensional expressionX=2y=3if x > Y: print (x) Else: print (y) res= ' aaaaa ' if x > y Else ' bbbbbbb ' #三元表达式print (RES) def max2 (x, y ): # if x > y:# return x# else:# return y return x if x > y else y

x = 10res = ' OK ' if x > 3 Else ' no 'Print (RES)#列表解析L = [' egg%s '%i for I in range (10)]Print (L)L = [' egg%s '%i for I in range (Ten) if I > 5]Print (L)names = [' Alex_sb ', ' Egon ', ' wupeiqi_sb ', ' YUANHAO_SB ']names_new = [name for name in

One or three-dollar operationFormat: Object = value 1 if condition else value 2 assigns value 1 to object when condition is set, and vice versa assigns value 2 to object>>> name = 1 if True else 2>>> name1>>> name = 1 if False else 2>>> name2General

I. GENERAL SITUATIONResult:---------------------------TrueResult:---------------------------falseSecond, assign the valuevar c=1var a = c > 100? ' I am the first ': ' I am the second ';document.write ("---------------------------" +a)//--------------

DOCTYPE HTML>HTML> Head> MetaCharSet= "UTF-8"> title>title> Head> Body> Body>HTML>Scripttype= "Text/javascript"> vara=parseint (Prompt ("Please enter a value")); varb=parseint (Prompt ("Please enter a value"));

Window. Event ={add:function() { //use conditional expressions to detect whether a standard method exists returnDocument.addeventlistener?function(A, B, c) {/*use the standard method if the standard method exists. Note here

Chicken soup:Always instill in yourself a thought: TMD is an individual, and what will he do and I will not? Will the king have a better feeling? I admit that people have a talent difference, but diligence can make up for defects! Therefore,

1. Three-dimensional expression (Trinocular operation)# 13-dollar expression (Trinocular operation method) # The format is: True if the result of the if decision condition else is false # In addition, three-dimensional expression is only suitable

Hunan SEO optimization Jianzigou for Baidu SE Spark program, talk about how to do site quality content. Although SE has been cracking down on spam sites and shielding meaningless repetitive content, there is still a large amount of spam sites and

To determine if there is a ternary ring in a contest chartFirst, if we can find a triple ring with any of these rings,Prove: Suppose there are three adjacent points on the ring a-> b-> C if the c->a has a side that has formed a three-dimensional

One, bitwise operatorsIn general applications, we basically use an operator that is not in place. Although, it is based on the underlying, performance and speed will be very good, and that is because the lower level, the use of the difficulty is

Private voidButton1_Click (Objectsender, EventArgs e) { //Conversion stringSTR1 ="expression 1-expression 2: Expression 3"; Str1. IndexOf ('?');//Find your first locationStringBuilder SB =NewStringBuilder (); string[] Str1s =

Today, a netizen posted a question in the group, but it may be wrong.Copy codeThe Code is as follows:Echo$ A = 1? 'One ':$ A = 2? 'Two ':$ A = 3? 'Three ':$ A = 4? 'Foura ': 'Other ';Echo "\ n "; The output result is:Result: fourI cannot understand

An expression? Condition 1: Condition twoIf the expression is true, return to condition one, and if false, return to condition 2.Isset () functionIsset is used to determine whether a function variable exists.$action =isset ($_get[' id ')? $_get[' id

Question Link Http://acm.zju.edu.cn/onlinejudge/showProblem.do? Problemid = 5269 The question is very simple, and all the situations are listed directly. My AC code # Include Int main (){Int T;Int A, B, C;Char C1, C2;Int S;Scanf ("% d", & T

Code: #include #include int max(int, int, int);int main(void) {int a, b, c;a = 100, b = 200, c = 300;printf("a = %d, b = %d, c = %d, max = %d\n", a, b, c, max(a, b, c));a = 200, b = 300, c = 100;printf("a = %d, b = %d, c = %d, max = %d\n", a, b, c, 

Python basics 3: functions, ternary functions, lambda functions, pythonlambda Functions: include user-defined functions and built-in functions 1) custom function structure:There are five parts: Def Keyword:Identification used to create functions

For an equation: x^2 + y^2 = z^2, the positive integer solution of his 22 coprime satisfies the condition1. x = 2*m*n, y = m^2-n^2, z = m^2 + n^22. GCD (M, N) =1, M > N, m and n are different in parity(2*m*n) ^2 + (m^2-n^2) ^2 = (m^2 + n^2) clearly

Introduction to the concatenation of PHP ternary operators. For more information, see. Let's first look at a three-element formula: Copy codeThe code is as follows: $ A = 1; $ B = 2; $ c = 3; $ d = 4; Echo $ a ?> Generally, according to the