急需将下面这一篇C++程序改成c语言程序。大师们帮帮忙，必有丰厚的金币相送（程序有点长，抱歉啦）。

Question

#include <iostream>
#include <string>
using namespace std;
struct student
{int ID;long number;string name;float score; student *next;};
student *head;
student *Create()
{student *p1;student *p2;
p1=new student;
cin>>p1->number>>p1->name>>p1->score;
head=NULL;p2=p1;
while(p1->number!=0)
{if(head==NULL)
head=p1;
else
p2->next=p1;p2=p1;p1=new student;
cin>>p1->number>>p1->name>>p1->score;}
p2->next=NULL;delete p1;
return(head);}
int Length(student *head)
{int length=0;
while(head)
{length++;head=head->next;}
return length;}
void Insert(student *&head,student *stu) //插入操作
{if(head==NULL)
{head=stu;stu->next=NULL;cout<<endl<<"插入成功";
return ;}
if(head->number>stu->number)
{stu->next=head;head=stu;cout<<endl<<"插入成功";
return ;}
student *p=head;
while(p->next&&p->next->number<stu->number)p=p->next;
stu->next=p->next;p->next=stu;cout<<endl<<"插入成功";}
void Delete(student* &head,long number)//删除操作
{student *p1;if(!head)
{cout<<"空表,不能进行删除操作。"<<endl;
return ;}
if(head->number==number)
{p1=head;head=p1->next;delete p1;cout<<number<<" 号学生信息已经被删除。";
return ;}
for(student *p2=head;p2->next;p2=p2->next)
{if(p2->next->number==number)
{p1=p2->next;p2->next=p1->next;delete p1;cout<<number<<" 号学生信息已经被删除。"<<endl;
return ;}}
cout<<number<<" 不能找到。\n";
return ;}
好吧，图上有，谢。

Answer 1

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
struct student
{int ID;long number;char name[100];float score; student *next;};
student *head;
student *Create()
{student *p1;student *p2;
p1=(struct student*)malloc(sizeof(student));;

scanf("%d %s %f ",&p1->number,&p1->name,&p1->score);
head=NULL;p2=p1;
while(p1->number!=0)
{if(head==NULL)
head=p1;
else
p2->next=p1;p2=p1;p1=(struct student*)malloc(sizeof(student));
scanf("%d %s %f ",&p1->number,&p1->name,&p1->score);
}
p2->next=NULL;free(p1);
return(head);}
int Length(student *head)
{int length=0;
while(head)
{length++;head=head->next;}
return length;}
void Insert(student *&head,student *stu) //插入操作
{if(head==NULL)
{head=stu;stu->next=NULL;
puts("");
puts("插入成功");
return ;}
if(head->number>stu->number)
{stu->next=head;head=stu;
puts("");
puts("插入成功");
return ;}
student *p=head;
while(p->next&&p->next->number<stu->number)p=p->next;
stu->next=p->next;p->next=stu;
puts("");
puts("插入成功");
}
void Delete(student* &head,long number)//删除操作
{student *p1;if(!head)
{
puts("空表,不能进行删除操作。");
return ;}
if(head->number==number)
{p1=head;head=p1->next;free(p1);

printf("%d 号学生信息已经被删除。\n",number);
return ;}
for(student *p2=head;p2->next;p2=p2->next)
{if(p2->next->number==number)
{p1=p2->next;p2->next=p1->next;free(p1);printf("%d 号学生信息已经被删除。\n",number);
return ;}}
printf("%d 不能找到。\n",number);
return ;}

已改好，编译成功，满意请采纳，有问题请追问，谢谢！

追问

这个只是2/3的程序，那个，首先谢谢啦，我还有1/3的内容因为文字限制没发上来，我QQ是540885476，你能帮我再翻译一下么？

Answer 2

你只需要把 new 换成malloc 把 cout 换成printf 把cin换成scanf 把 delete 换成free 就可以了。这个程序改成C语言后语法基本上没有太大的区别，无非就是关键字不一样了