#include<iostream>#include<cstdlib>#include<ctime>#include<windows.h>#include<cmath>usingnamespace std;char c ='\0';intmain(int argc,char**argv){srand(time(0));//生成随机数。for(;;){for(longlongint i =1;i <=sqrt(sqrt(pow(rand(),rand())));i ++){//下面switch:随机字符。switch(rand()%5){case0:case1:
c =-rand();break;case2:case3:case4:
c =rand();break;}//下面两行:加颜色。
HANDLE hConsole =GetStdHandle(STD_OUTPUT_HANDLE);SetConsoleTextAttribute(hConsole,rand()%9);if(c !='\a'|| c !='\r') cout << c << flush;}//如果你想让电脑卡死,可以把下面三行删了。system("cls");
cout <<"\a\r";Sleep(((rand()%10)+1)*1000);}return0;//几乎运行不到这一行。}