#include <stdio.h>
#include <string.h>

 void main(void)
{
    struct birthdate
    {
        int year;
        int month;
        int day;
    };
    struct score_table
    {
        long int number;
        char name[20];
        char sex;
        struct birthdate birth;
        char depart[20];
        float score;
   
    }student1={20100311201,"杨科学",'M',{1990,5,26},"量子力学",93.1};
    struct score_table student2={20100311202,"科学杨",'M',{1990,5,56},"应用物理",99.8};
    struct score_table student3={20100311205,"杨科学",'M',{1990,8,9},"电子信息工程"，99.9};
    printf("学号     姓名   性别  出生日期  专业       分数\n");
    printf(" %ld %s %c %4d-%2d-%2d  %s  %3.2f\n",student1.number,student1.name,student1.sex,student1.birth.year,student1.birth.month,student1.birth.day,student1.depart,student1.score);



}

上面程序有什么错误,请指出.检查了好几遍都没发现问题,为什么运行不出来?

20100311201这个长整超了吧？还有一个符号不对（"电子信息工程"后面的逗号）！！
struct score_table student3={20100311205,"杨科学",'M',{1990,8,9},"电子信息工程"，99.9};

建议你不要用“程序”来法代码，复制不了不好改错啊……

可以复制的啊

#include <stdio.h>
#include <string.h>
void main(void)
{
    struct birthdate
    {
        int year;
        int month;
        int day;
    };
    struct score_table
    {
        char number[12];
        char name[20];
        char sex;
        struct birthdate birth;
        char depart[20];
        float score;
   
    }student1={"20100311201","杨科学",'M',{1990,5,26},"量子力学",93.1f};
    struct score_table student2={"20100311202","科学杨",'M',{1990,5,56},"应用物理",99.8f};
    struct score_table student3={"20100311205","杨科学",'M',{1990,8,9},"电子信息工程",99.9f};
    printf("学号     姓名   性别  出生日期  专业       分数\n");
    printf(" %s %s %c %4d-%2d-%2d  %s  %3.2f\n",student1.number,student1.name,student1.sex,student1.birth.year,student1.birth.month,student1.birth.day,student1.depart,student1.score);



}

就按你的改！

非常感谢。错误就是这些。

谢谢给我提供了另一种方法。