c语言打印 变量地址_在C中打印变量的地址

c语言打印 变量地址

To print the address of a variable, we use "%p" specifier in C programming language. There are two ways to get the address of the variable:

要打印变量的地址 ，我们使用C编程语言中的“％p”说明符。 有两种获取变量地址的方法：

1. By using "address of" (&) operator

   通过使用“地址的”( ＆ )运算符

2. By using pointer variable

   通过使用指针变量

1)通过使用“地址”(＆)运算符 (1) By using "address of" (&) operator)

When we want to get the address of any variable, we can use “address of operator” (&) operator, it returns the address of the variable.

当我们想要获取任何变量的地址时，可以使用“运算符的地址”(＆)运算符，它返回变量的地址。

Program:

程序：

#include 

int main(void)
{
	// declare variables 
	int a;
	float b;
	char c;

	printf("Address of a: %p\n", &a);
	printf("Address of b: %p\n", &b);
	printf("Address of c: %p\n", &c);

	return 0;
}

Output

输出量

Address of a: 0x7ffd3d518618
Address of b: 0x7ffd3d51861c
Address of c: 0x7ffd3d518617

2)通过使用指针变量 (2) By using pointer variable)

A pointer is the type of a variable that contains the address of another variable, by using the pointer; we can also get the address of another variable.

指针是变量的类型，通过使用指针，该变量包含另一个变量的地址； 我们还可以获取另一个变量的地址。

Read more: Pointers in C language

阅读更多： C语言指针

Program:

程序：

#include 

int main(void)
{
	// declare variables 
	int a;
	float b;
	char c;
	
	//Declare and Initialize pointers 
	int *ptr_a = &a;
	float *ptr_b = &b;
	char *ptr_c = &c;
	
	//Printing address by using pointers 	
	printf("Address of a: %p\n", ptr_a);
	printf("Address of b: %p\n", ptr_b);
	printf("Address of c: %p\n", ptr_c);

	return 0;
}

Output

输出量

Address of a: 0x7ffd3d518618
Address of b: 0x7ffd3d51861c
Address of c: 0x7ffd3d518617

Note: At every run output may change.

注意：每次运行时输出可能会改变。

翻译自: https://www.includehelp.com/c-programs/printing-an-address-of-a-variable.aspx

c语言打印 变量地址