C

Object-C, array NSArray Back in the evening, I wrote two iOS applications. Displays tags on the interface. One is to manually construct the interface and then bind the event. Another method is to use the built-in interface as the container, but

Object-C, NSArraySortTest, and array sorting When I come back in the evening, I will continue to write the Object-C example. Today I am not planning to write the iOS visual interface program, so I am too tired. Just now, dady called again, and he

Object-C, Object and Method I learned Object-C and bought two books. One of them was bought in C currency. The overall quality is average and the comparison is basic. Another one is crazy-written by Li Yang. It's scary and comprehensive. I have a

Object-C, NSSet, unchangeable set At night, continue the code. At this time, dad made a phone call, "the sky is high, the sky is high, the birds fly", Dad is not bothering me for the old problem. When I got free, I suddenly felt a lot of

Single-Chip Microcomputer: the stopwatch count is implemented in C Language (Keys start, end, reset) Implement the stopwatch counting function, using the timer and external interrupt. The 8 button indicates the start/end of the timer, and the C

Object-C, file path API   Sharp complaints 1. they are also "file and directory operations". In java, java is used. util. A File class encapsulates a lot of APIS, and Object-C is engaged in so many classes and functions. The specific reasons are to

[C Language] use the callback function to Implement Bubble SortingFunction: You can sort the integer or string as follows: #include #include int int_cmp(const void *p1, const void *p2){ if (*(int *)p1 > *(int *)p2) { return 1; }

Simple C Language ProgramEvaluate the number of 1 in binary code # Include # include int count_one_bit (unsigned int num) {int count = 0; while (num) {if (num % 2 = 1) count ++; num = num/2 ;} return count;} int main () {int ret = count_one_bit (2

C language: Calculate the Celsius Temperature Based on the Fahrenheit temperature and analyze the error Program: # include int main () {double c, f = 64; c = 5 * (f-32)/9; printf ("f = % lf \ nc = % lf \ n", f, c); return 0;} result: f =

Strcat () function FAQs The strcat (char * _ Destination, const char * _ Source) function is used to paste the last string to the end of the previous string.Prototype Char * strcat (char * _ Destination, const char * _ Source)Common Errors A

[C Language] function pointerA pointer can point to a variable, an array, or a function. A function pointer is a pointer to a function. The function name is actually the starting address of the program in the memory. The pointer to the function can

C language: print the prime number between 100 and 200 # Include # include int main () {int I = 0; int count = 0; for (I = 101; I sqrt (I) {count ++; printf ("% d", I) ;}} printf ("count = % d \ n", count ); return 0 ;} Output result: 101 103 10

Analysis of variable accumulation in multiple threads in C Language Q: What is the value of g_iTestInteger printed by the main function in the following program? /*************************************** * ******************************** All Rights

[C Language] analog Calculator # Include # include int _ add (int a, int B) {return a + B;} int _ sub (int a, int B) {return a-B ;} int _ mul (int a, int B) {return a * B;} int _ div (int a, int B) {if (B = 0) {printf ("except digit 0 \ n");}

8635 balloons, 2920838635   8635 balloons This question has an answerTime Limit: 500 MS memory limit: 1000 KSubmissions: 204 passed: 58Question type: Programming Language: G ++; GCC DescriptionOne day, OYY came back from the

C Language --> statistics on the number of occurrences of each type in the input stringProblem description: compile a program to count the number, white space character, and the number of times all other characters appear in the input string. Code

C language: four methods; two integers are exchanged (including the introduction of third-party variables and the absence of third-party variables)Method 1: Program: # include void swap (int * p1, int * p2) {int t = * p1; * p1 = * p2; * p2 = t;}

Introduction to "multithreading" and Its C code implementation framework In some books related to computer science, we often hear about the concept of "multithreading. So what is "multithreading "? When can I use multiple threads "? What are the

Simulate strcpy, strstr, and strcat functions in C LanguageIn C, to simulate the implementation of these database functions, it is to test the pointer passing involved in the function call. The Code is as follows, which is only for reference to the

C language: Simulate strncatSimulate Implementation of strncat (): it is different from the strcat () function to prevent connection failure when '\ 0' cannot be found when you connect yourself. The strcat () function can be viewed as a blog