c language pointer pointing to a constant and a constant pointer

Constant pointer pointing to: the pointer value can not be changed, the pointer is not constant, it is possible to modify the pointer

int main(void)
{
    int value = 10;
    /*定义一个指向常量的指针*/
    const int *pValue = &value;
    //pValue = &value;

    /**
     * 
     * 编译器会报错，*pValue是只读的。
     * 也就是指针指向的值不能改变
     */ 
         /**
         * 这个赋值编译器会报错 assignment of read-only location '*pValue'
         * 因为*pValue指向的值是常量，所以不能改变。
         */
    *pValue = 20;
    /*但可以对value的值进行改变*/
    int number = 30;
    /**
     * 指针不是常量，所以可以修改指针的指向
     */
    pValue = &number;
    return 0;
}

Constant pointer
#include <stdio.h>

/**

• Const pointer

• Stored address pointer can not be changed
  /
  int main (void)
  {
  int value = 10;
  int const = & pValue value;

  int item = 34;
  /**

  • Compiler error, assignment of read-only variable 'pValue'.
  • DESCRIPTION can not modify the address stored in the pointer
    /
    pValue = & Item;
    / may be modified address value points /
    pValue = 24;
    return 0;
    }