#include<stdio.h>

struct stu
{
    int num;
    char *name;     //为什么是*name而不是name?
    char sex;
    float score;
}boy[5]={
          {101,"Zhou ping",'M',45},
          {102,"Zhang ping",'M',62.5},
          {103,"Liou fang",'F',92.5},
          {104,"Cheng ling",'F',87},
          {105,"Wang ming",'M',58},
        };
void main()
{

 struct stu *ps;

 printf("No\tName\t\t\tSex\tScore\t\n");

 for(ps=boy;ps<boy+5;ps++)

 printf("%d\t%s\t\t%c\t%f\t\n",ps->num,ps->name,ps->sex,ps->score);
}

为什么换成

#include<stdio.h>

struct stu
{
    int num;
    char name;
    char sex;
    float score;
}boy[5]={
          {101,'Z','M',45},
          {102,'Z','M',62.5},
          {103,'L','F',92.5},
          {104,'C','F',87},
          {105,'W','M',58},
        };
void main()
{

 struct stu *ps;

 printf("No\tName\t\t\tSex\tScore\t\n");

 for(ps=boy;ps<boy+5;ps++)

 printf("%d\t%s\t\t%c\t%f\t\n",ps->num,ps->name,ps->sex,ps->score);
}

就会出错.

#include<stdio.h>

struct stu
{
    int num;
    char name; //变成字符了
    char sex;
    float score;
}boy[5]={
          {101,'Z','M',45},
          {102,'Z','M',62.5},
          {103,'L','F',92.5},
          {104,'C','F',87},
          {105,'W','M',58},
        };
void main()
{
struct stu *ps;
printf("No\tName\t\t\tSex\tScore\t\n");
for(ps=boy;ps<boy+5;ps++)
printf("%d\t%c\t\t%c\t%f\t\n",ps->num,ps->name,ps->sex,ps->score);
}

#include<stdio.h>

struct stu
{
    int num;
    char *name;   //name是字符指针，存储字符串的首地址
    char sex;
    float score;
}boy[5]={
          {101,"Zhou ping",'M',45},
          {102,"Zhang ping",'M',62.5},
          {103,"Liou fang",'F',92.5},
          {104,"Cheng ling",'F',87},
          {105,"Wang ming",'M',58},
        };
void main()
{
struct stu *ps;
printf("No\tName\t\t\tSex\tScore\t\n");
for(ps=boy;ps<boy+5;ps++)
printf("%d\t%s\t\t%c\t%f\t\n",ps->num,ps->name,ps->sex,ps->score);
}




[ 本帖最后由 qq1023569223 于 2011-3-21 13:51 编辑 ]

我想问一下，boy好像没有定义，怎么能用呢？（for(ps=boy;ps<boy+5;ps++)）这句没有看懂！

boy是一个结构体的名字，在定义结构体的时候 以及被初始化了，在内存之中已经有了这个名字。

要定义一个字符串的话  要嘛是个数组  要嘛是个指针，直接定义的话好像不行  我试了