c：struct之匿名struct

c：struct之匿名struct

一、代码：

/*
* gcc11.1(c17)
*
*/

#include <stddef.h>
#include <stdio.h>
 
 
 // 定义常规struct和指针struct   
 typedef struct
 {
     // 匿名struct的定义
     struct{ char *name; char *id; int score; };
     
     char *date; 
 }info, *ptinfo;
 
 
 // 匿名struct初始化  
 info lidawei={.name="laohu", .id="13572468", .score=145, .date="2022-07-04"};
 ptinfo pf=&lidawei;
 
 
 void msg(ptinfo in)
 {
     printf("id=%s,/tname=%s, /tscore=%d, /tdate=%s/t",
            in->id, in->name, in->score, in->date);

 }
 
 
int main(int argc, char *argv[])
{
    
    int max = argc;
    printf("argc=%d/n", argc);
    for(int i=0; i<max; i++)
    {
        printf("argv[%d]=%s/n", i, argv[i]);
    }
    
    
    msg(pf);
    
    
    return 0;
}


/*
*    运行结果：
*
*    argc=1
*    argv[0]=./a.out
*    id=13572468,	name=laohu, 	score=145, 	date=2022-07-04
*/