分配动态二维数组问题，求改错！ - C语言论坛

已结贴√ 问题点数：20 回复次数：1

分配动态二维数组问题，求改错！

# include <stdio.h>
# include <stdlib.h>
int main()
{
    void fun(int **p, int x, int y)
    {
        int i, j;
        p = (int **)malloc(x * sizeof(int *));
        for (i = 0; i < x; i++)
        {
            p[i] = (int *)malloc(y * sizeof(int));
            for (j = 0; j < y; j++)
            {
                p[i][j] = i+j;
                printf("%5d",p[i][j]);
            }
        }
    }
    void funs(int **p, int x)
    {
        int i, j;
        for (i = 0; i < x; i++)
        {

            free(p[i]);
            pArr[i] = 0;
        }
        free(p);
        p = 0;
    }
    int **p=NULL;
    fun(p,4,5);
    funs(p,4);
    return 0;
}

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# include <stdio.h> # include <stdlib.h> void fun(int **p, int x, int y) { int i, j; p = (int **)malloc(x * sizeof(int *)); for (i = 0; i < x; i++) { p[i] = (int *)malloc(y * sizeof(int)); for (j = 0; j < y; j++) { p[i][j] = i+j; printf("%5d",p[i][j]); } } } void funs(int **p, int x) { int i; for (i = 0; i < x; i++) { free(p[i]); p[i] = NULL; } free(p); p =NULL; } int main() { int **p=NULL; fun(p,4,5); funs(p,4); return 0; }