有以下程序

#include <stdio.h>

#include <string.h>

struct A

{ 

int a;

char b[10]; 

double c;

};

struct A f(struct A t);

main()

{ 

struct A a={1001,"ZhangDa",1098.0};

a=f(a); 

printf("%d,%s,%6.1f\n",a.a,a.b,a.c);

}

struct A f(struct A t)

{ 

t.a=1002;

strcpy(t.b,"ChangRong");

t.c=1202.0;

return t; 

}

程序运行后的输出结果是

• A.1002,ZhangDa,1202.0

• B.1002,ChangRong,1202.0

• C.1001,ChangRong,1098.0

• D.1001,ZhangDa,1098.0