#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<conio.h>
struct men
{
    char name[20];
    int income;
};
struct men input();
void display(struct men [],int);
char name(struct men [],char,char);
int srcz(struct men[],int,int);
void xmpx(struct men[],int);
int main(void)
{
    struct men stu[20];
    int count=0;
    char sel='1',flag;
    while(sel!='8')
    {
        system("cls");
        printf("--------2手房交易系统---------\n\n");
        printf("1.信息录入\n2.所有人信息\n3.按姓名查找\n4.按收入查找\n5.按收入排序\n6.按姓名排序\n7.统计收入总额\n8.退出\n");
        printf("\n请选择: ");
        sel=getchar();
        switch(sel)
        {
        case'1':
            system("cls");
            do{
                stu[count]=input();
                count++;
                printf("是否继续？(y/n):");
                fflush(stdin);
                flag=getchar();
            }while(flag=='y'||flag=='Y');break;
        case'2':
            display(stu,count);
            break;
        case'6':
            xmpx(stu,count);
            break;
        }
        
    }
    
}

struct men input()
{
    struct men stu;
    printf("输入姓名:\n");
    scanf("%s",&stu.name);
    printf("\n输入收入: ");
    scanf("%d",&stu.income);
    return stu;
}
void display(struct men stud[],int count)
{
    system("cls");
    printf("姓名,收入");
    printf("======,======");
    for(int i=0;i<count;i++)
    {
        printf("%s",stud[i].name);
        printf("%d",stud[i].income);
        printf("\n");
    }
    printf("\n按任意键返回主菜单: ");
    getchar();
}
int srcz(struct men stud[],int count,int income)
{
    int i;
    for(i=0;i<count;i++)
    {
        if(stud[i].income==income)
            return i;
    }
    return -1;
}

void xmpx(struct men[],int count)
{
    struct men men[20];
    char temp[20];
    for(int i=0;i<count;i++)
    {
        for(int j=0;j<i;j++)
        {
            if(strcmp(men[i].name,men[j].name)>0)
            {
                strcpy(temp,men[i].name);
                strcpy(men[i].name,men[j].name);
                strcpy(men[j].name,temp);
            }
        }
    }
    for(int i=0;i<count;i++)
    {
        printf("%s %d\n",men[i].name,men[i].income);
    }
    system("cls");
    printf("\n姓名排序已经完成，按任意键返回主菜单: ");
    getch();
}

我用vs2005c++编译器的
没报错 可是什么功能都不能实现丫
请各位帮帮忙。。。还有 不能用指针（老师规定的）
各位大虾 起码帮我实现5 和6这2个功能吧 谢谢

你的程序5.6功能很好實現的....
void namesort(struct men stu[],int count)
{
     char temp[20];
     printf("\n按姓名排序:\n");
     for(int i=0;i<count;i++)
     {
             for(int j=i+1;j<count;j++)
             {
                 if(strcmp(stu[i].name,stu[j].name)>0)
                 {
                    strcpy(temp,stu[i].name);
                    strcpy(stu[i].name,stu[j].name);
                    strcpy(stu[j].name,temp);
                 }
             }
     }
     for(int i=0;i<count;i++)
     {
             printf("%s %d\n",stu[i].name,stu[i].income);
     }   
     printf("\n姓名排序已經完成,按任意鍵返回主菜單.");
     getch();
}                                                                  

void insort(struct men stu[],int count)
{
     struct men temp;
     printf("\n按收入排序:\n");
     for(int i=0;i<count;i++)
     {
         for(int j=i+1;j<count;j++)
         {
             if(stu[i].income>stu[j].income)
             {
                temp=stu[i];
                stu[i]=stu[j];
                stu[j]=temp;
             }
         }
     }                                                                    
     for(int i=0;i<count;i++)
     {
             printf("%s %d\n",stu[i].name,stu[i].income);
     }   
     printf("\n收入排序已經完成,按任意鍵返回主菜單.");
     getch();
}
這兩個函數就可以實現5.6功能.你試試