C语言实训，实验1-12都有，这是表达式计算.txt

//表达式计算

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>  //C标准函数库中的头文件，定义了一批C语言字符分类函数，用于测试字符是否属于特定的字符类别。既支持单字节(Byte)字符，也支持宽字符
#include<math.h>
#include<string.h>

struct Node1
{
    char a;
    struct Node1 *next;
};

struct Node2
{
    double a;
    struct Node2 *next;
};
typedef struct Node1 *Stack1;
typedef struct Node2 *Stack2;
Stack1 CreakStack1()
{
    Stack1 S;
    S = (Stack1)malloc(sizeof(Node1));
    S->next = NULL;
    return S;
}

Stack2 CreakStack2()

{
    Stack2 S;
    S = (Stack2)malloc(sizeof(Node2));
    S->next = NULL;
    return S;
}



void Push1(char c, Stack1 S)
{
    Stack1 tmp;
    tmp = (Stack1)malloc(sizeof(Node1));
    tmp->a = c;
    tmp->next = S->next;
    S->next = tmp;

}


void Push2(double c, Stack2 S)
{
    Stack2 tmp;
    tmp = (Stack2)malloc(sizeof(Node1));
    tmp->a = c;
    tmp->next = S->next;
    S->next = tmp;

}