c# programmer salary

"%d\n", result); the return 0; - } - - //"ITC" ' 7 ' + intChar_contains (CharStr[],Charc) - { + inti =-1; A at //1. Traversing the entire string - while(Str[++i]! = C Str[i]! =' /' ) ; - - //return str[i] = = ' 0:1 '? - returnStr[i]! =' /'; -} Array of strings 1. Use Cases* One -dimensional character array holds a string, such as a name char name[20] = "MJ" * If you want to store multiple strings, such as the names of

do subtraction, the original code to calculate the negative 0;"Bitwise operator"1, bitwise operatorsA binary calculation; applied only to an integral type.1) Bitwise AND: 94=0, with 1 The result is 1, 0 result is 0; any cardinality and 1 are 1; even and 1 are 0;2) | The bitwise OR 1 is 1, the same 0 is 0;3) ~ 1 0,0 change to 1;4) ^ Bitwise XOR or Same as 0, different 15) >> Right shift each binary all right shift n bit, low drop, high 0, equivalent to the original number/2^n;6) 2, Practical:An

programming interfaces)③ Framework contains a lot of header files, if you want to use the entire framework of content, including its header file can--#import use of bool:The nature of the bool typeTupdef signed Char BOOL;There are two values for variables of type bool: YES NO#define YES (BOOL) 1#define NO (BOOL) 0Output of bool (As Integer)NSLog (@ "%d%d", yes,no); nslog differs from printf: 1.nslog receives the OC string as a parameter. printf receives the

; -}As the study progresses, the scope of the re-understanding variable begins with the line of code that defines the variable, until the end of the block of code that is being used, and the code block is in time to reclaim some of the variables that are no longer in use in order to improve performance.An example of a variable's scope problem:1#include 2 intMain ()//multiple blocks of code in the main function3 {4 intA = -;5 intScore = a + -;6printf"%d\n", score);//Output7 8 {9

English lettercomma ,scanf ("%d,%d,%d", a, b, c); input format:10,14,20well number #scanf ("%d#%d#%d", a, b, c); input format:10#14#20Letter xscanf ("%dx%dx%d", a, b, c); input format:10x14x202> receives 3 values with the scanf function, separated by a space between each valuescanf ("%d%d%d", a, b, c);3%d is separated

process is roughly:Else indicates that the above conditions do not establish the code to execute else.: Indicates and|| : Indicates orEffect:Please write the above code three times and above in vs.Switch syntax:switch is not very useful in comparison with If. For example: Switch can only differentiate between different individual items. Determine what the value of S is and then execute the corresponding code, So we're dividing the score by 10 to take its quotient as a switch projec

condition is not established, return 0, False A intresult = B >=A; - -printf"%d\n", result); the - -}Five, logical operation1. Logic and (notation )"Conditional a condition BB"When both condition A and condition B are true, the result is real, that is, the value is 1, otherwise falseFor example1 Logic and Conditions 1 conditions 22 3 int a = ten>3 76; 4 5 int 0 Ten ; 6 7 printf ("a=%d\n", a);2. Logical OR (notation | | ）"Condition a| | Conditi

() function error-prone, you have to connect the three. C and John Doe. C together.The teacher's method is: Zhang San call John Doe function, also have to Zhang San themselves again to write average function declaration in their own # # #, so if the program a lot of statements, feel every time the statement is very troublesome. Because Zhang San himself had to find John Doe to declare the function. Let Joh

Programmer --- C language details 27 (when the function has no parameters, the function returns the int type proof by default, the return value by default, and the void pointer ++ Operation)Main Content: details when the function has no parameters, proof of int type returned by the function by default, return value by default, void pointer ++ operation I. Details of functions without Parameters Void shoul

counterThe binary of integer A is reversed, and the sign bit is reversed (0 to 0)5. Move leftL Shift all the binary of integer A to the left n bit, high discard, low 0. The n-bit left shift is actually multiplied by 2 of the n-th squareL Because left shift is discard the highest bit, 0 is the lowest bit, so the sign bit will also be discarded, the result value of left shift may change the positive and negative character6. >>Move RightL Shift all the binary in integer A to the right n bits, keep

troubleshooting1."The tool of program debugging-Log": http://www. Zhouzhaoxiong. com/106.Html2.The process of troubleshooting a database table index problem: http://www. Zhouzhaoxiong. com/.Html3.The process of troubleshooting program timing problems in C language: http://www. Zhouzhaoxiong. com/136.Html4.Troubleshooting process for two variable initialization problems: http://www. Zhouzhaoxiong. com/138.Html5.Troubleshooting a configuration item iss

MB = 1024x768 kb,1 GB = 1024x768 mb,1 TB = 1024x768 GBV. Constants (fixed data)Classification1 integer constant (int), containing all integers2 floating-point constant (float/double), float: single-precision floating-point type; double-precision floating-point type3 character constant (char), single character enclosed in single quotation marks, except Chinese.4 string constants, one or more characters enclosed in double quotation marks, except Chinese.Vi. variables (data that needs to be change

of an enumeration type when you define an enumeration type3. Basic operation assignment of enumeration variablesEnumeration constants or integer values can be assigned to enumeration variablesTraversing an enumeration elementIntroduction to Typedef1.typedef Effect1) We can use the TypeDef keyword to define a new name for various data types2) We can also alias the alias based on thetypedef and PointersA typedef can alias a pointer, except that it can alias a basic data typetypedef and structural

add the keyword extern to the leftmost side of the function, it means that the function is an external function that can be called by other files. The C language specifies that if you omit extern when defining a function, it is implied as an external function. 4. In a file to invoke the external functions in other files, you need to declare the external function in the current file with extern, and then you can use, where the extern can also be omitt

(formal parameter list){function body}ExampleDefines a function that calculates the number of two integers andsum (int a, int b){int c =a+b;}Formal parameters and argumentsParameters: variables to be defined when a function is defined, parameters can have countless variables that cannot be defined in a function body and parametersArguments: The actual parameters of the function are passed in when the function is called, and the argument must correspo

value we assign to Floatvar is actually 331.79, but why is the output 331.790009? In fact, the values displayed are determined by a particular computer system. Use a special way to manage numbers inside your computer. Computers in the processing of numbers, it is likely to encounter inaccuracies, such as 1 divided by 3, calculated as 3.3333333, the string of 3 is actually just an approximation, theoretically, there should be an infinite number of 3. However, computers can only save these number

calculate the average score, how many people in the class need to enter their own#include intMainintARGC,Const Char*argv[]{//Define student number variables, prompting users to enter the number of class students intcount; printf ("Please enter the class number of students \ n"); //receiving user's inputscanf ("%d",count); //define an array save student scores intScores[count];//receive the results of each student entered by a user for(intI=0; i) {printf ("Please enter the grade of%d students

, when we defined an object, we created an auto-release pool, and then we wrote our code in the release pool, which is a system-provided reference counting problem that helps us to manage objects.But sometimes the code must be in {...} This will create a scope problem, that is, in the {...} The variables defined in the {...} cannot be used outside.So there's another way in OC: NSAutoreleasePool this classThis automatic release pool enables nestingNSAutoreleasePool *pool1 = [[NSAutoreleasePool al

: The contents of the string need to be changed frequently2> using pointersChar *name = "Itcast";* Features: string is actually a constant string, inside the character is cannot be modified* Usage: The contents of the string do not need to be modified, and this string is often usedPointers to functions//(*p) is a fixed notation, which means that the pointer variable p will definitely be pointing to the function#includeintSumintAintb) { returnA +b;} intMain () {//define pointer variables to po

length is greater than 10, the storage space is automatically increased. nsmutablestring * Stringa = [[Nsmutablestring alloc] Initwithcapacity:Ten];//setString Setting Strings[Stringa setString:@"Apple 1234"];//appendString Stitching Strings[Stringa appendString:@"567"];//AppendFormat Stitching format string[Stringa AppendFormat:@"Age =%i",888];//Replacecharactersinrange:range Withstring:id//replacing strings based on ranges//Find RangeNsrange range = [Stringa rangeofstring:@"ple"];//Start Repl