Python和C语言利用栈分别实现进制转换

#include <stdlib.h>
#include <stdio.h>
 
#define STACK_INIT_SIZE 100   //栈初始开辟空间大小
#define STACK_INCREMENT 10    //栈追加空间大小
 
//栈的结构体
typedef struct stack{
    int *base;
    int *top;
    int size;
}binStack;
 
//栈初始化
binStack stack_init()
{
    binStack bs;
    bs.base = (int *)malloc(sizeof(int)*STACK_INIT_SIZE);
    bs.top = bs.base;
    bs.size = STACK_INIT_SIZE;
    return bs;
}
 
//入栈
void push(binStack *bs, int e)
{
    if(bs->top - bs->base >= bs->size)
    {
        bs->size  = STACK_INCREMENT;
        bs->base = realloc(bs->base, bs->size);
    }
    *(bs->top  ) = e;
}
 
//出栈
int pop(binStack *bs)
{
    if(bs->top != bs->base)
    {
        bs->top--;
        return *bs->top;
    }
    return -1;
}
 
//主函数
void main()
{
    int dec;
    binStack bs = stack_init();
    printf("请输入十进制整数：\n");
    scanf("%d", &dec);
    while(dec)
    {
        push(&bs, dec%2);
        dec /= 2;
    }
    printf("转换后的二进制数是：\n");
    while(bs.top != bs.base)
    {
        printf("%d", pop(&bs));
    }
    printf("\n\n");
    system("date /T");
    system("TIME /T");
    system("pause");
    exit(0);    
}

import datetime  //显示时间引入的库
import time      //
from pip._vendor.distlib.compat import raw_input  //使命令窗口不立即关闭引入的库
 
//栈类
class BinStack:
    def __init__(self):
        self.bs = []
    
    //入栈
    def push(self, e):
        self.bs.append(e)
    
    //出栈     
    def pop(self):
        if self.bs:
            return self.bs.pop()
        else:
            raise LookupError("stack is empty!")
    
    //检查栈是否为空，是返回False，不是返回True
    def isEmpty(self):
        return bool(self.bs)
        
if __name__ == '__main__':
    binStack = BinStack()
    dec = int(input("请输入十进制整数：\n"))
    print("转换后的二进制数是：")
    while dec != 0:
        binStack.push(dec%2)
        dec //= 2
    while binStack.isEmpty() == True:
        print("{}".format(binStack.pop()), end="")
    else:
        print("\n")
    //打印时间
    datetime = datetime.datetime.now()
    print(datetime.strftime("%Y-%m-%d\n%H:%M:%S"))
    //使命令窗口不立即关闭
    input("Press Enter to exit…")