本文实例为大家分享了C语言实现学生信息管理系统的具体代码，供大家参考，具体内容如下

代码实现的功能：

1.插入学生信息 2.显示学生信息 3.删除学生信息 4.在指定位置插入学生信息 5.查找学生信息

代码内容：

#include <stdio.h>#include <stdlib.h>#include <string.h>#define Max_Student_Num 10#define Max_Str_len 20typedef struct T_student{ int number; char name [Max_Student_Num]; char phone[Max_Student_Num];};typedef struct T_Node{ struct T_student s; struct T_Node * next;};char command_str[]={"\n1 display all member;\n2 insert member;\n3 del member;\n4 exit\nCommand selection:"};struct T_student students[Max_Student_Num];struct T_Node * head = NULL;int main(int argc, char* argv[]){ int command, i; struct T_student student; struct T_Node * pStu =head; memset(&student,0,sizeof(student)); while(1){ printf("%s",command_str); scanf("%d", &command); switch(command) { case 1: if(head==NULL){ printf("empty!!!!!!!!!!!!\n"); break; } if(head->next==head){ display_student(head); }else{ pStu=head->next; do { display_student(pStu); pStu=pStu->next; }while(pStu!= head->next);// } break; case 2: printf("enter new student number:"); scanf("%d", &student.number); printf("enter new student name:"); scanf("%s", &student.name); if(strlen(student.name) > Max_Str_len) { printf("name is too long!!\n"); continue; } printf("enter new student phone:"); scanf("%s", &student.phone); if(strlen(student.phone) > Max_Str_len) { printf("phone is too long!!\n"); continue; } printf("\n"); if(student.number != 0) insert_student(student); break; case 3: printf("Inter deleted student number:"); scanf("%d", &student.number); del_student(student); break; case 4: return 0; default: printf("error command, try again\n"); break; } }}void display_student( struct T_Node * pStu){ printf("number:%d name:%s phone:%s \n",pStu->s.number,pStu->s.name,pStu->s.phone);}void insert_student(struct T_student student){ struct T_Node* pNode ; struct T_Node* pStu =NULL; int size = sizeof(struct T_Node); pStu=(struct T_Node *)malloc (size); if(pStu == NULL){ return ; } memcpy(&pStu->s,&student,sizeof(student)); if(head==NULL){ pStu->next=head; head=pStu; head->next=head; return ; } pStu->next = head->next; head->next=pStu;}void del_student(struct T_student student){ struct T_Node *pNode =NULL,*p=NULL; if(head->next==head && head->s.number==student.number){ pNode=head; head=NULL; free(pNode); printf("success"); return; } for(pNode=head->next;pNode != head;pNode=pNode->next){ if( pNode->next->s.number == student.number){ p=pNode->next->next; free(pNode->next); pNode->next=p; printf("Delete success!\n"); return; } } printf("Not Found\n");}

测试截图：

1.插入功能：

2.显示功能：

3.查询功能：

4.删除功能：

5.指定位置插入：

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