C 语言创建、初始化和访问指针变量程序

编写一个 C 语言程序，通过示例创建、初始化和访问指针变量。在此示例中，我们声明了一个整数值，将其分配给 int 类型的指针，并打印了该指针的值和地址。

#include <stdio.h>

int main()
{   
    int num;
    int *pnum;
    
    pnum = &num;
    num = 200;

    printf("Information of the Normal num Variable\n");
    printf("num = %d Address of num = %u\n", num, &num);

    printf("Information of the Pointer pnum Variable\n");
    printf("num = %d Address of num = %u\n", *pnum, pnum);

}

此 程序 创建了一个 char 变量，用一个随机字符初始化，并访问或打印了该字符指针。

#include <stdio.h>

int main()
{   
    char ch;
    char *pch;

    pch = &ch;

    printf("Please Enter Any Charcater = ");
    scanf("%c", &ch);

    printf("Information of the ch Variable\n");
    printf("num = %c Address of num = %p\n", ch, &ch);

    printf("Information of the Pointer pch Variable\n");
    printf("num = %c Address of num = %p\n", *pch, pch);

}

Please Enter Any Charcater = o
Information of the ch Variable
num = o Address of num = 0x7ff7b26716af
Information of the Pointer pch Variable
num = o Address of num = 0x7ff7b26716af