malloc 总结

malloc总结:

https://blog.youkuaiyun.com/a351945755/article/details/20142809

int m = 2;
int n = 3;
int i;

//二位数组a[m][n]
int **a;

a = (int **) malloc(m * sizeof(int *));

for(i=0; i<m; ++i)
{
    a[i] = (int *) malloc(n * sizeof(int));
}

memset(a, 0, sizeof(int) * m * n);

(稍后补充)