int main()
{
    //正确写法
    //int ages['A'] = {10, 11, 12, 14, 16};
    //int size = sizeof(ages);
    //printf("%d\n",size);
    
    //正确写法
    /*
     int count = 5;
     int ages[count];
     ages[0] = 10;
     ages[1] = 11;
     ages[2] = 18;
     */
    //printf();
    //错误写法
    //如果想在定义数组的同时进行初始化，数组元素个数必须是常量，或者不写
    //int ages [count] = {10, 11, 12};
    int ages[] = {10, 11, 12, 78};
    
    int count = sizeof(ages)/sizeof(int);
    
    
    for (int i = 0; i<5; i++)
    {
        printf("ages[%d]=%d\n",i, ages[i]);
    }
    return 0;
}

//数组的基本使用
void arrayUse()
{
    //数组的定义格式： 类型 数组名[元素个数]；
    int ages[5] = {19, 29, 28, 27, 26};
    
    ages[1] = 29;
    
    /*
     ages[0] = 19;
     ages[1] = 29;
     ages[2] = 28;
     ages[3] = 27;
     ages[4] = 26;
     */
    //遍历：按顺序查看数组的每一个元素
    for (int i = 0; i<5; i++)
    {
        printf("ages[%d]=%d\n",i,ages[i]);
    }
}

#include <stdio.h>

int main()
{
    /*
     char cs[5]= {'a', 'A', 'D' 'e', 'f'};
     
     printf("%p\n",cs);
     
     for (int i = 0; i<5; i++){
        printf("cs[%d]的地址是：%p\n",&cs[i]);
     
     }*/
    double ages[3]= {10, 19, 18};
    
    printf("%p\n", ages);
    
    for (int i = 0; i<3; i++) {
        printf("ages[%d]的地址是：%p\n",i,&ages[i])
    }
    return 0;
}

#include <stdio.h>

//数值作为函数参数，可以省略元素个数
//数组作文函数参数，传递是整个数组的地址，修改函数形参数组元素的值，会影响到外面实参数组
void change(int array[6])
{
    printf("array==%p\n",array);
    
    array[0] = 100;
}

void change2(int n)
{
    n = 100;
}


int main()
{
    int ages[6] = {10, 11, 10, 11, 10, 11};
   
      printf("ages==%p\n",ages);
    
    change(ages);
  
    // change2(ages[0]);
    
        printf("%d\n",ages[0]);
    

    
    
    return 0;
}