插入.cpp
D:\VC++6.0\MSDev98\MyProjects\gg\数据结构1\插入.cpp(15) : error C2440: 'initializing' : cannot convert from 'const int' to 'int *'
        Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
D:\VC++6.0\MSDev98\MyProjects\gg\数据结构1\插入.cpp(15) : error C2440: 'initializing' : cannot convert from 'const int' to 'int *'
        Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast
Error executing cl.exe.

插入.obj - 2 error(s), 0 warning(s)

不贴代码怎么看啊

看上面意思是你的参数类型不对

以下是代码： （帮忙改一下，我猜测是main（）的问题）
#define LIST_INIT_SIZE 100
#define LISTINCREMENT  10
#include<stdio.h>
#include<malloc.h>
 typedef struct
    {
        char *elem;
        int length;
        int listsize;
    }SqList;
int InitList_Sq(SqList &L);
int ListInsert_Sq(SqList &L,int i,char e);
void main()
{
    
    SqList  aa[2]={'a','b'};
    InitList_Sq(aa[2]);
    ListInsert_Sq(aa[2],1,'Z');
    printf("输出插入后的数组：\n");
        for(int j=0;j<3;j++)
            printf("%c",aa[j]);
        printf("\n");
}
int InitList_Sq(SqList &L){
    L.elem=(char *)malloc(LIST_INIT_SIZE *sizeof(char));
    if(!L.elem)return -2;
    L.length=0;
    L.listsize=LIST_INIT_SIZE;
    return 1;
}
int ListInsert_Sq(SqList &L,int i,char e)
{
    if(i<i || i>L.length+1)return 0;
    if(L.length>=L.listsize){
        char *newbase=(char *)realloc(L.elem,(L.listsize+LISTINCREMENT)*sizeof(char));
        if(!newbase)return -2;
        L.elem=newbase;
        L.listsize+=LISTINCREMENT;
    }
    char *q=&(L.elem[i-1]);
    char *p;
    for(p=&(L.elem[L.length-1]);p>=q;--p)*(p+1)=*p;
    *q=e;
    ++(L.length);
    return 1;
}

1.整型赋值给指针类型
    SqList  aa[2]={'a','b'};
这个也是类似的错误

楼上正解，建议楼主再看看结构体的知识，这是最基本的结构体赋值问题

应该怎么改才好呢？

#include<stdio.h>
#include<malloc.h>
typedef struct
    {
        char *elem;
        int length;
        int listsize;
    }SqList;
int InitList_Sq(SqList &L);
int ListInsert_Sq(SqList &L,int i,char e);
void main()
{
     SqList l;
    char  aa[2]={'a','b'};
    InitList_Sq(l);
    ListInsert_Sq(l,1,'Z');
    printf("输出插入后的数组：\n");
        for(int j=0;j<3;j++)
            printf("%c",aa[j]);
        printf("\n");
}
int InitList_Sq(SqList &L){
    L.elem=(char *)malloc(LIST_INIT_SIZE *sizeof(char));
    if(!L.elem)return -2;
    L.length=0;
    L.listsize=LIST_INIT_SIZE;
    return 1;
}
int ListInsert_Sq(SqList &L,int i,char e)
{
    if(i<i || i>L.length+1)return 0;
    if(L.length>=L.listsize){
        char *newbase=(char *)realloc(L.elem,(L.listsize+LISTINCREMENT)*sizeof(char));
        if(!newbase)return -2;
        L.elem=newbase;
        L.listsize+=LISTINCREMENT;
    }
    char *q=&(L.elem[i-1]);
    char *p;
    for(p=&(L.elem[L.length-1]);p>=q;--p)*(p+1)=*p;
    *q=e;
    ++(L.length);
    return 1;
}

运行不出要插入的元素啊