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C语言访问结构成员
#include <stdio.h> #include <string.h> struct Books { chartitle[50]; charauthor[50]; charsubject[100];
C语言指针比较
#include <stdio.h> const int MAX = 3; int main () { intvar[] = {10, 100, 200}; inti, *ptr; /* let us have address of the first element in pointer */
C语言递减指针
#include <stdio.h> const int MAX = 3; int main () { intvar[] = {10, 100, 200}; inti, *ptr; /* let us have array address in pointer */
C语言递增指针
#include <stdio.h> const int MAX = 3; int main () { intvar[] = {10, 100, 200}; inti, *ptr; /* let us have array address in pointer */
C语言NULL指针
// C语言NULL指针 // C语言NULL指针 -------------------- #include <stdio.h> int main () { int*ptr = NULL;
C语言如何使用指针
#include <stdio.h> int main () { intvar = 20;/* actual variable declaration */ int*ip;/* pointer variable declaration */
C语言打印变量的地址
#include <stdio.h> int main () { intvar1; char var2[10]; printf("Address of var1 variable: %x\\n", &var1);
C语言指向数组的指针
#include <stdio.h> int main () { /* an array with 5 elements */ double balance[5] = {1000.0, 2.0, 3.4, 17.0, 50.0};
C语言从函数返回数组
#include <stdio.h> /* function to generate and return random numbers */ int * getRandom( ) { static intr[10];
C语言访问二维数组元素
#include <stdio.h> int main () { /* an array with 5 rows and 2 columns*/ int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6},{4,8}};
C语言访问数组元素
#include <stdio.h> int main () { int n[ 10 ]; /* n is an array of 10 integers */ int i,j; /* initialize elements of array n to 0 */
C语言形式参数形参
#include <stdio.h> /* global variable declaration */ int a = 20; int main () { /* local variable declaration in main function */
C语言局部和全局变量
#include <stdio.h> // C语言局部和全局变量 /* global variable declaration */ int g = 20; int main () {
C语言全局变量
#include <stdio.h> /* global variable declaration */ int g; int main () { /* local variable declaration */
C语言局部变量
#include <stdio.h> int main () { /* local variable declaration */ int a, b; int c; /* actual initialization */
C语言调用函数
#include <stdio.h> /* function declaration */ int max(int num1, int num2); int main () { /* local variable definition */