使用堆栈可以实现对括号的匹配检查，比如输入{[]}会告诉你输入正确，当输入[(])的时候就会报错

#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>

#define SIZE_OF_STACK 30
#define SIZE_NEW_STACK 5
#define true 1
#define false 0

typedef struct bracket
{
    char *base;
    char *top;
    int sizeOfStack;
} BRACKET;

int initStack(BRACKET *myBracket);
int destoryStack(BRACKET *myBracket);
int push(BRACKET *myBracket, char temp);
int getTop(BRACKET *myBracket, char *temp);
int visitStack(BRACKET tempStack);
int isEmptyStack(BRACKET tempStack);

int main()
{
    char templeft, tempright, templeft0;
    int flag = 0;
    BRACKET myBracket;
    while(true)
    {
        while(true)
        {
            flag = 0;
            initStack(&myBracket);
            printf("please input a string:\n");
            scanf("%c", &templeft);
            while(templeft != '\n' && (templeft == ']' || templeft == '}' || templeft == ')' ||
                                       templeft == '(' || templeft == '{' || templeft == '['))
            {
                templeft0 = templeft;
                switch(templeft)
                {
                case '{':
                case '[':
                case '(':
                    push(&myBracket, templeft);
                    break;
                case '}':
                    getTop(&myBracket, &tempright);
                    if(tempright != '{')
                    {
                        printf("{和}括号不匹配！\n");
                        flag = 1;
                    }
                    break;
                case ']':
                    getTop(&myBracket, &tempright);
                    if(tempright != '[')
                    {
                        printf("[和]括号不匹配！\n");
                        flag = 1;
                    }
                    break;
                case ')':
                    getTop(&myBracket, &tempright);
                    if(tempright != '(')
                    {
                        printf("(和)括号不匹配! \n");
                        flag = 1;
                    }
                    break;
                }
                scanf("%c", &templeft);
            }
            //visitStack(myBracket);
            if(templeft0 != ']' && templeft0 != '}' && templeft0 != ')' &&
                    templeft0 != '(' && templeft0 != '{' && templeft0 != '[')
            {
                printf("输入不合法！\n");
                break;
            }
            else
            {
                if(isEmptyStack(myBracket) && flag != 1)
                {
                    printf("完全正确！\n");
                }
                else if(flag != 1)
                {
                    printf("你漏选了一些括号！\n");
                }
            }
        }
    }
    return 0;
}

int initStack(BRACKET *myBracket)
{
    myBracket->base = (char *)malloc(SIZE_OF_STACK * sizeof(char));
    if(myBracket->base == NULL)
    {
        printf("fail to get memory");
        exit(1);
    }
    myBracket->top = myBracket->base;
    myBracket->sizeOfStack = SIZE_OF_STACK;
    return true;
}

int destoryStack(BRACKET *myBracket)
{
    free(myBracket->base);
    myBracket->base = NULL;
    myBracket->top = NULL;
    myBracket->sizeOfStack = 0;
    return true;
}

int push(BRACKET *myBracket, char temp)
{
    if(myBracket->top - myBracket->base >= SIZE_OF_STACK)
    {
        myBracket->base = (char *) realloc(myBracket->base, sizeof(char) * SIZE_NEW_STACK);
        if(myBracket->base == NULL)
        {
            printf("fail to get memory");
            exit(1);
        }
        myBracket->top = myBracket->base + SIZE_OF_STACK;
        myBracket->sizeOfStack += SIZE_OF_STACK;
    }
    *myBracket->top++ = temp;
    return true;
}

int getTop(BRACKET *myBracket, char *temp)
{
    if(myBracket->top == myBracket->base)
    {
        printf("no information\n");
        return false;
    }
    *temp = *(--myBracket->top);
    return true;
}

int visitStack(BRACKET tempStack)
{
    if(tempStack.base == tempStack.top)
    {
        printf("have no information!\n");
        return false;
    }
    while(tempStack.base < tempStack.top)
    {
        printf("%c", *(--tempStack.top));
    }
    printf("\n");
    return true;
}

int isEmptyStack(BRACKET tempStack)
{
    if(tempStack.base == tempStack.top)
        return true;
    return false;
}