为什么运行时sex和score会连在一起

Question

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct stu
 {
 int num;
 char *name;
 char sex;
 float score;
 } boy1,boy2;
main()
{
 printf("input num:");
 scanf("%d",&boy2);
 printf("input name:");
 scanf("%s",&boy2);
 printf("input sex:");
 scanf("%c",&boy2);
 printf("input score:");
 scanf("%f",&boy2);
 printf("number=%d",boy2.num);
 printf("name=%s",boy2.name);
 printf("sex=%c",boy2.sex);
 printf("number=%f",boy2.score);
}

运行时会发生
intput sex:input score:
的情况

Answer 1

scanf char前面加getchar()消除缓存
你那个打印不了，帮你改了

 
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
struct stu
 {
 int num;
 char name[15];
 char sex;
 float score;
 } boy1,boy2;
main()
{
 printf("input num:");
 scanf("%d",&boy2.num);
 printf("input name:");
 scanf("%s",&boy2.name);
 printf("input sex:");
 getchar();
 scanf("%c",&boy2.sex);
 
 printf("input score:");
 scanf("%f",&boy2.score);
 printf("number=%d\n",boy2.num);
 printf("name=%s\n",boy2.name);
 printf("sex=%c\n",boy2.sex);
 printf("number=%2f\n",boy2.score);
}