Data analysis of akali teaching Bureau in the first half of the fifth set

//    You can calculate the total scores of Chinese and Mathematics for your brother in grade three 
//#include<stdio.h>
//int main()
//{
//	int chinese = 0;
//	int math = 0;
//	scanf_s("%d %d", &chinese, &math);
//	int sum = chinese + math;
//	printf("sum = %d\n", sum);
//	return 0;
//}
// If you want to calculate the total score of Chinese and Mathematics for the whole class ？ List the repeated codes , That's a lot low ah    That's where the function comes in 

//#include<stdio.h>
//int ADD(int chinese, int math) //int  Function type ;ADD Function name ;（ Function parameter 1, Function parameter 2）
//{
//	return chinese + math;//return Function return value type      
//}
 Like what to eat   Pull what    meat （ Acid food ） Eat into your stomach    Excretion is acidic 
//int main()
//{
//	int chinese = 0;
//	int math = 0;
//	scanf_s("%d %d", &chinese, &math);
//	int sum =ADD(chinese, math);
//	printf("sum =  %d\n", sum);
//	return 0;
//}

/*----------------------------------------------------------------

	 We talked about one-dimensional array , It can be understood as X Axis ;  Two dimensional arrays are X-Y Axis （ Plane coordinate system ）
*/
#include<stdio.h>
int main()
{
	int group[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };// One dimensional array 
	int group_two[][3] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };// Two dimensional array    Equivalent to three rows and three columns 
	 Visit a one-dimensional array   
	//printf("%d\n", group[0]);
	//printf("%d\n", group[1]);
	//printf("%d\n", group[2]);
	// Access one-dimensional array in a circular way   The same goes for two-dimensional arrays 
	int frequency = 0;
	while (frequency < 9) {
		printf("%d\n", group[frequency]);
		frequency++;
	}
	// Calculate the total size of the array    Calculate the size of an element 
	printf("group = %d\n", sizeof(group));//9 Elements , One int Occupy 4 Bytes   4*9=36
	printf("group[0]=%d\n", sizeof(group[0]));//4

	// Calculate the total size of the array  /  Calculate the size of an element  =  Element number 
	int number = sizeof(group) / sizeof(group[0]);
	printf("number = %d\n", number);
	 Access 2D array 
	//printf("%d\n", group_two[2][0]);// visit [][] You have to write the subscript 


	// Take one-dimensional array for example , The subscript is from 0 At the beginning , You want to get 1, Is access group[0],o Subscript at , And so on 
	return 0;
}