C语言-郝斌笔记-002病毒程序示范

病毒程序示范

/*
龌龊的程序!
*/
# include <stdio.h>
# include <windows.h>
# include <malloc.h>
#include<cstdlib>

int main(void)
{
    int c;
    int i;
    int j;

    Nihao:
    printf("1:死机
");
    printf("2:机房爆炸
");
    printf("请选择:
");

    scanf("%d,&c");

    if  (c ==1)
    {
        system("shutdown -s -t 60");
    }
    else if (2 == c)
    {
        printf("你太坏了 我要惩罚你!
");
        for (j=0;j<10;++j){
            system("start");
        }
    }
    else
    {
        printf("你敲错了，请重新输入!
");
        goto Nihao;
    }
    return 0;
}

内存泄露(占满内存)程序导致死机实例

#include < stdio.h > #include < malloc.h >

    int main(void) {
        while (1) {
            int * p = (int * ) malloc(1000);
        }
        return 0;
    }