char *p="abcde";
时间: 2024-05-25 12:18:55 浏览: 21
As an AI language model, I can interpret the given statement as follows:
The statement declares a pointer variable named 'p' of type 'char' and assigns it the memory address of a string literal "abcde". The string "abcde" is a sequence of characters terminated by a null character '\0'.
The pointer variable 'p' points to the first character 'a' of the string literal "abcde". The pointer 'p' can be used to access the characters of the string literal.
Note that the string literal "abcde" is stored in read-only memory and cannot be modified through the pointer 'p'.
相关问题
char*p="abcde";
This statement creates a pointer variable named p, which points to the first character of the string "abcde". The pointer variable p contains the memory address of the first character 'a'. The string "abcde" is stored in memory as a sequence of characters, with a null character ('\0') at the end to indicate the end of the string. The pointer p can be dereferenced using the * operator to access the value of the first character ('a').
#include<stdio.h> #include<string.h> void main) { char *p = "abcde"; printf("%d,",sizeof(p)); printf("%d,",strlen("abcde"); printf(*%d\n",sizeof("abcde")); }
这段代码有一些语法错误,应该是这样的:
```
#include<stdio.h>
#include<string.h>
int main() {
char *p = "abcde";
printf("%d,",sizeof(p));
printf("%d,",strlen("abcde"));
printf("%d\n",sizeof("abcde"));
return 0;
}
```
这段代码的作用是输出三个数字,分别是指针变量p的大小、字符串"abcde"的长度、字符串"abcde"的大小。其中,指针变量p的大小在32位系统中通常是4字节,在64位系统中通常是8字节;字符串"abcde"的长度是5,因为它包含5个字符(不包括结尾的空字符'\0');字符串"abcde"的大小是6,因为它包含5个字符和结尾的空字符'\0'。