有以下程序

#include <stdio.h>

#include <string.h>

typedef struct { char name[9]; char sex; int score[2]; } STU;

STU f (STU a)

{ STU b={"Zhao", 'm', 85, 90};

int i;

strcpy( a.name, b.name );

a.sex = b.sex;

for ( i=0; i<2; i++ ) a.score[i] = b.score[i];

return a; 

}

main()

{ STU c= { "Qian", 'f', 95, 92 }, d;

d = f(c);

printf ("%s,%c,%d,%d, ", d.name, d.sex, d.score[0], d.score[1]);

printf ("%s,%c,%d,%d\n", c.name, c.sex, c.score[0], c.score[1]);

}

程序运行后的输出结果是

• A.Zhao,m,85,90, Qian,f,95,92

• B.Zhao,m,85,90, Zhao,m,85,90

• C.Qian,f,95,92, Qian,f,95,92

• D.Qian,f,95,92, Zhao,m,85,90