malloc()函数练习

xiaoxiao2021-02-28  108

#define _CRT_SECURE_NO_WARNINGS #include<stdio.h> #include<stdlib.h> void main() { //int num[1024 * 1024 * 10]; //数组只能处理小数据 //int num = 100; //int number[num]; //数组的大小必须确定,但num是变量,值可以变化 int num; scanf("%d", &num); int *p = (int *)malloc(num*sizeof(int)); for (int *pnum = p, i = 0; pnum < p + num; pnum++, i++) { *pnum = i + 1; printf("%d,%x\n", *pnum, pnum); } system("pause"); }
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