#include <stdio.h>
#include <malloc.h>
typedef struct node{
    struct node *next;
    char data;
}JD;
match(char E[])
{
    JD *top,*s,*h;
    int i;
    h=(JD*)malloc(sizeof(JD*));
    h->data='0';
    h->next=NULL;
    top=h;
    while(E[i]!='\0')
    {
        char item;
        if(E[i]=='(' || E[i]=='[' || E[i]=='{')
        {
            s=(JD*)malloc(sizeof(JD*));
            s->data=E[i];
            s->next=top;
            top=s;
        }
        if(E[i]==')')
        {
            if(top==h){
            printf("mismatch");
            return 0;
            }
            item=top->data;
            s=top;
            top=s->next;
            free(s);
            if(item!=E[i]-1){
                printf("mismatching!");
                return 0;
            }
        }
            else if(E[i]==']' || E[i]=='}'){
                if(top==h){                /*测试堆栈是否为空*/
                    printf("mismatching!");
                    return 0;
                }
                item=top->data;        /*退栈*/
                s=top;
                top=s->next;
                free(s);
                if(item!=E[i]-2){
                    printf("mismatching!");
                    return 0;
                }
            }
            i++;
    }
    if(top==h)
        printf("matching!\n");
    else
        printf("mismatching!\n");
    return 1;
}
void main()
{
    char s[100]={0};
    printf("Please enter the parentheses arithmetic expression:\n");
    scanf("%s",s);
    match(s);
}

顶起啊

在线等啊

i在使用前没有赋初值。

改成int match()就行了，没有指定函数的返回值类型