1 #include "stdio.h"
  2 #include "stdlib.h"
  3 #include "stdbool.h"
  4 
  5 #define MAXSIZE 1024
  6 #define ERROR 0
  7 
  8 typedef int elemtype;
  9 
 10 typedef struct{
 11     elemtype data[MAXSIZE];
 12     int last;
 13 } SList;
 14 
 15 
 16 
 17 //初始化线性表L并返回线性表
 18 SList *Init_SList(){
 19     SList *L;
 20     L = (SList *)malloc(sizeof(SList));
 21     L ->last = -1;
 22     printf("初始化成功\n");
 23     return L;
 24 }
 25 
 26 
 27 //线性表的数据录入
 28 SList *indata_SList(SList *L){
 29     elemtype x ;
 30     scanf("%d" ,&x);
 31     while(x != 0){
 32         L -> last += 1;
 33         L -> data[L -> last] = x;
 34         scanf("%d",&x);
 35         }
 36     return L;
 37 }
 38 
 39 
 40 //判断表是否为空
 41 bool is_empty(SList *L){
 42     return (L -> last == -1);
 43 }
 44 
 45 
 46 //求线性表的表长
 47 int SList_Length(SList *L){
 48     return(L -> last + 1);
 49 }
 50 
 51 
 52 //遍历线性表
 53 void print_SList(SList *L){
 54     int i = 0;
 55     for(i = 0; i < L -> last + 1; i++)
 56     {
 57         printf("  a[%d] = %d",i , L -> data[i]);
 58         if(i%5 == 0) printf("\n");
 59     }
 60 }
 61 
 62 
 63 //插入数据于指定位置
 64 SList *insert_SList(SList *L, int insert, int loc){
 65     if(loc < 0||loc > L -> last + 1){
 66         printf("请输入正确的插入位置\n");
 67     }
 68     else{
 69     L -> last = L -> last + 1;
 70     int i = 0;
 71     for(i = L -> last; i > loc - 1; i--){
 72         L -> data[i] = L -> data[i-1];
 73     }
 74     L -> data[loc] = insert;
 75     }
 76     return L;
 77 }
 78 
 79 
 80 //删除顺序表中指定位置的值非数组下标
 81 SList *delete_SList(SList *L, int loc){
 82     int e = 0;
 83     if(!(L -> data[loc - 1])||loc > L -> last + 2)
 84         return ERROR;
 85     else
 86     {
 87         int i = 0;
 88         e = L -> data[loc - 1];
 89         for (i = loc ; i <= L -> last; i++) {
 90             L -> data[i - 1] = L -> data[i];
 91         }
 92         L -> last = L -> last - 1;
 93         printf("您已成功删除数据%d",e);
 94         return L;
 95     }
 96 }
 97 
 98 
 99 //改动某一数据的值
100 SList *change_SList(SList *L, int e, int loc){
101     if(!(L -> data[loc - 1])||loc > L -> last + 2)
102         return ERROR;
103     else{
104         L -> data[loc] = e;
105     }
106     return L;
107 }
108 
109 
110 //查看某一元素是否在线性表中，若在，则返回其位置
111 int search_SList(SList *L, int e){
112     int i = 0;
113     int loc = 0;
114     for(i = 0 ; i <= L -> last - 1; i++)
115     {
116         if(L -> data[i] == e)
117             loc = i;
118         
119     }
120     if(loc < L -> last - 1) return loc;
121     else return 0;
122 }
123 
124 
125 //主函数
126 int main(){
127     int e = 0;
128     int loc = 0;
129     SList * MyList = Init_SList();
130     printf("请输入一组数据以插入进线性表,以0作为停止输入标志:");
131     indata_SList(MyList);
132     is_empty(MyList);
133     int length = SList_Length(MyList);
134     printf("您输入的线性表的表长为%d",length);
135     print_SList(MyList);
136     printf("\n");
137     printf("请输入您要插入的数据以及位置:");
138     scanf("%d %d",&e,&loc);
139     MyList = insert_SList(MyList,e,loc);
140     print_SList(MyList);
141     printf("\n");
142     printf("请选择需要删除的元素位置:");
143     scanf("%d",&loc);
144     MyList = delete_SList(MyList, loc);
145     print_SList(MyList);
146     printf("\n");
147     printf("请输入需要改动为新元素的值及其位置");
148     scanf("%d %d",&e, &loc);
149     change_SList(MyList,e,loc);
150     print_SList(MyList);
151     printf("\n");
152     printf("请输入要查找的元素:");
153     scanf("%d",&e);
154     loc = search_SList(MyList, e);
155     if(loc != 0)
156     printf("您要查找的元素在位置%d",loc);
157     else printf("您要查找的元素不在顺序表内\n");
158     printf("\n");
159 }