动态数组的实现

版权声明:Andy https://blog.csdn.net/Alibaba_lhl/article/details/83034157
#include <stdio.h>
#include <malloc.h>
#include <stdlib.h>

/// 程 式 名: DyArray.c
/// 程式功能: 动态数组的实现
/// 功能描述: 动态数组的创建与使用
int main()
{
    int *array = 0, num, i;
    printf("please input the number of element: ");
    scanf("%d", &num);
    array = (int *)malloc(sizeof(int)*num); /// 申请动态数组使用的内存块
    if (array == 0)             /// 内存申请失败,提示退出
    {
        printf("out of memory,press any key to quit...\n");
        exit(0);             /// 终止程序运行,返回操作系统
    }
    printf("please input %d elements: ", num);/// 提示输入num个数据
    for (i=0; i<num; i++)
    {
       scanf("%d", &array[i]);
    }
    printf("%d elements are: \n", num);/// 输出刚输入的num个数据
    for (i=0; i<num; i++)
    {
        printf("%d,", array[i]);
    }
    printf("\b \n");    /// 删除最后一个数字后的分隔符逗号(\b = 退格键(backspace))
    free(array);        /// 释放由malloc函数申请的内存块
    system("pause");
    return 0;
}

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转载自blog.csdn.net/Alibaba_lhl/article/details/83034157