请对以上链表进行删除操作，删除职工号为“101”的员工信息，并显示员工信息。

Question

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>

typedef struct emp
{
char ID[20];
float salary;
struct emp* next;
int code;
}Employee;

void PrintT(Employee* Head)
{
Employee* p;
p = Head;
printf("\n输出链表中员工的ID和薪资\n");
while (p)
{
printf("ID:%s\n salary:%f\n", p->ID, p->salary);
p = p->next;
}

}
Employee* CreatT(int n)
{
Employee* head, * cur, * pnew;
int i;
head = cur = NULL;
for (i = 0; i < n; i++)
{
pnew = (Employee*)malloc(sizeof(Employee));
printf("请输入第%d个员工的ID和薪资\n", i + 1);
scanf("%s%f", &pnew->ID, &pnew->salary);
if (i == 0)
{
head = cur = pnew;
}
else
{
cur->next = pnew;
cur = pnew;
}
}
cur->next = NULL;
return head;

}
Employee Delete_T(Employee Head, char* id)
{
Employee *p = Head;
p = p->next;
p->next = q->next;
free(q);

int main()
{
char ID[20];
Employee* p, * head = CreatT(5);
PrintT(head);

printf("\n请输入待删除的工号:");
scanf("%s", ID);
p = Delete_T(head, ID);
if (p) {
printf("\n待删除结果:\nID:%s\nSalary:%f\n", p->ID, p->salary);
}
else {
 printf("没有删除到结果");
} 
system("pause");
return 0;

}

Answer 1

修改如下，供参考：

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>

typedef struct emp
{
    char ID[20];
    float salary;
    struct emp* next;
    int code;
}Employee;

void PrintT(Employee* Head)
{
    Employee* p;
    p = Head;
    printf("\n输出链表中员工的ID和薪资\n");
    while (p)
    {
        printf("ID:%s\n salary:%f\n", p->ID, p->salary);
        p = p->next;
    }

}
Employee* CreatT(int n)
{
    Employee* head, * cur, * pnew;
    int i;
    head = cur = NULL;
    for (i = 0; i < n; i++)
    {
        pnew = (Employee*)malloc(sizeof(Employee));
        printf("请输入第%d个员工的ID和薪资\n", i + 1);
        scanf("%s%f", &pnew->ID, &pnew->salary);
        if (i == 0)
        {
            head = cur = pnew;
        }
        else
        {
            cur->next = pnew;
            cur = pnew;
        }
    }
    cur->next = NULL;
    return head;
}
Employee* Delete_T(Employee* Head, char* id)
{
    Employee* p = Head, * pre = NULL;
    while (p && strcmp(p->ID, id) != 0)
    {
        pre = p;
        p = p->next;
    }
    if (!p){
        printf("Not Delete:%s", id);
    }
    else{
        if (pre == NULL)
            Head = p->next;
        else
            pre->next = p->next;
        free(p);
    }
    return Head;
}
int main()
{
    char ID[20];
    Employee* p, * head = CreatT(5);
    PrintT(head);

    printf("\n请输入待删除的工号:");
    scanf("%s", ID);
    head = Delete_T(head, ID);
    PrintT(head);
    //if (p) {
    //    printf("\n待删除结果:\nID:%s\nSalary:%f\n", p->ID, p->salary);
    //}
    //else {
    //    printf("没有删除到结果");
    //}
    system("pause");
    return 0;
}