请问，为什么这个代码只能输入，没有输出

Question

请问，为什么这个代码只能输入，没有输出
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
struct list{
int num;
char name[30];
double salary;
struct list*next;
};
struct list *create()
{
struct list *head;
struct list p;
struct list tail;
int n=0;
int num;
char name[30];
double salary;
//tail=p=(struct list)malloc(sizeof(struct list));
scanf("%d",&num);
while(num!=0){
n++;
scanf("%s\t%ld",name,&salary);
p=(struct list)malloc(sizeof(struct list));
p->num=num;p->salary=salary;strcpy(p->name,name);
p->next=NULL;
if(n==1)
head=p;
else
tail->next=p;
tail=p;

     scanf("%d",&num);       
}
return head;

}
int main()
{

printf("请输入职工信息:");
struct list *head=create();
void max_list(struct list *head);
max_list(head);
return 0;

}
void max_list(struct list *head)
{
struct list *z,q;
q=z=(struct list)malloc(sizeof(struct list));
z=head;

for(q=head;q->next!=NULL;q=q->next)
{
    if(q->salary>z->salary)
    {
        z=q;
    }
    z->next=NULL;
}
printf("最高基本工资的员工信息:&s &ld",z->name,z->salary);
//return head;

}

Answer 1

修改如下，供参考：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
struct list {
    int    num;
    char   name[30];
    double salary;
    struct list* next;
};
struct list* create()
{
    struct list* head;
    struct list* p;
    struct list* tail;
    int n = 0;
    int num;
    char name[30];
    double salary;
    //tail=p=(struct list)malloc(sizeof(struct list));
    scanf("%d", &num);
    while (num != 0) {
        n++;
        scanf("%s %ld", name, &salary);  //scanf("%s\t%ld", name, &salary); 修改
        p = (struct list*)malloc(sizeof(struct list));
        p->num = num; 
        p->salary = salary; 
        strcpy(p->name, name);
        p->next = NULL;
        if (n == 1)
            head = p;
        else
            tail->next = p;
        tail = p;
        scanf("%d", &num);
    }
    return head;
}
int main()
{
    printf("请输入职工信息:");
    struct list* head = create();
    void max_list(struct list* head);
    max_list(head);
    return 0;
}
void max_list(struct list* head)
{
    struct list* z,* q;
    //q = z = (struct list*)malloc(sizeof(struct list)); //修改
    z = head;

    for (q = head; q != NULL; q = q->next) 
        //for (q = head; q->next != NULL; q = q->next)修改
    {
        if (q->salary > z->salary)
        {
            z = q;
        }
        //z->next = NULL;  修改
    }
    printf("最高基本工资的员工信息:%s %ld", z->name, z->salary);
    //printf("最高基本工资的员工信息:&s &ld",z->name,z->salary); 修改
    //return head;
}