顺序表的基本操作

#include<stdio.h>
#define MAXSIZE 100
//顺序表的结果定义
typedef struct{
    int data[MAXSIZE];
    int num;
}SeqList; 
//建立顺序表
void CreateSeqList(SeqList *S){
    S->num = 0;
} 
//尾部插入元素
void Insert_Tail(SeqList *S,int e){
    S->data[++S->num] = e;
} 
//随机插入
void Insert_Random(SeqList *S,int n,int x){
    int i;
    for(i=++S->num;i>n;i--){
        S->data[i] = S->data[i-1];
    }
    S->data[n] = x;
}
//删除元素
void DeleteSeqList(SeqList *S,int n){
    int i;
    if(n<1||n>S->num){
        return ;
    }
    for(i=n;i<S->num;i++){
        S->data[i] = S->data[i+1];
    }
    S->num--;
} 
//打印顺序表
void DisplaySeqList(SeqList *S){
    int i;
    for(i=1;i<=S->num;i++){
        printf("%d ",S->data[i]);
    }
    printf("\n");
}
int main(void){
    SeqList S;
    int i;
    CreateSeqList(&S);
    for(i=1;i<=10;i++){
        Insert_Tail(&S,i);
    }
    DisplaySeqList(&S);
    Insert_Random(&S,2,100);
    DisplaySeqList(&S);
    
    
    DeleteSeqList(&S,15);
    DisplaySeqList(&S);
    return 0; 
}