动态二维数组

Posted 2021-01-03 m-anonymous

应用场景：

假如你需要输入一个任意行任意列的矩阵数组，之后再进行一系列的操作。

DEMOCODE:

#include<stdio.h>
#include<stdlib.h>
int main(void)
{
    int line,list;
    int **pary;
    int i,j;
    printf("Input the line:
");
    scanf("%d",&line);
    printf("Input the list:
");
    scanf("%d",&list);
    pary = (int **)malloc(sizeof(int *)*line);
    printf("Input the array:
");
    for(i=0;i<line;i++)
    {
        pary[i] = (int *)malloc(sizeof(int)*list);
        for(j=0;j<list;j++)
        {
            scanf("%d",&pary[i][j]);
        }
    }

    for(i=0;i<line;i++)
    {
        for(j=0;j<list;j++)
        {
            printf("%d  ",pary[i][j]);
        }
        printf("
");
    }

    for(i=0;i<line;i++)
        free(pary[i]);
    free(pary);
    return 0;
}