1 #include<stdio.h>
  2 #include<string.h>
  3 #include<stdlib.h>
  4 //**********延时
  5 void delay(int n)
  6 {
  7     int i;
  8     n*=50000000;
  9     for(i=1;i<=n;i++);
 10 }
 11 //**********倒计时
 12 void countdown(unsigned long s) 
 13 {
 14 int i;
 15 unsigned long n;
 16 n=s;
 17 for(i=0;i<=s;i++)
 18 {printf(" %9ld秒!",n);
 19 delay(6);
 20 if(i<s)
 21 printf("\b\b\b\b\b\b\b\b\b\b\b\b\b");
 22 n--;
 23 }
 24 }
 25 //**********小时与分钟化为秒
 26 long sum_second(int h,int m,long s)
 27 {
 28 s=3600*h+60*m+s;
 29 return s;
 30 }
 31 //**********父选择
 32 void ch_f(char a[])
 33 {
 34     int c;
 35     system("cls");
 36     puts(a);
 37     printf("1.数秒钟后\n");
 38     printf("2.数分钟后\n");
 39     printf("3.数小时后\n");
 40 }
 41 //**********子选择
 42 int ch_s(char a[],char b[])
 43 {
 44     int t;
 45     system("mode con: cols=26 lines=2");
 46     system("color fc");
 47     puts(a);
 48     scanf("%d",&t);
 49     system("cls");
 50     system("mode con: cols=25 lines=2");
 51     puts(b);
 52     return t;
 53 }
 54 //**********主函数
 55 main()
 56 {
 57 int c,t;
 58 char a[20],b[20],d[20];
 59 system("title 关机重启");
 60 system("mode con: cols=25 lines=8");
 61 system("color f9");
 62 printf(" ╪╧╧╧╧╪╧╧╧╧╪\n");
 63 printf("╔═╧╧关机程序╧╧═╗\n");
 64 printf("║※1.倒计时关闭计算机║\n");
 65 printf("║※2.倒计时重启计算机║\n");
 66 printf("║※3.倒计时注销计算机║\n");
 67 printf("║※0.退出系统　      ║\n");
 68 printf("╚══════════╝\n");
 69 printf("你的选择是：");
 70 scanf("%d",&c);
 71 if(c!=1&&c!=2&&c!=3)
 72 c=0;
 73 system("cls");
 74 system("mode con: cols=20 lines=5");
 75 system("color f0");
 76 switch(c)
 77 {
 78 case 1:
 79     {
 80         strcpy(a,"何时关闭您的计算机?");
 81         strcpy(d,"距关闭还有:");
 82         ch_f(a);
 83         scanf("%d",&c);
 84     switch(c)
 85     {
 86     case 1:
 87         {
 88             strcpy(b,"多少秒钟后关闭您的计算机?");
 89             t=ch_s(b,d);
 90             countdown(sum_second(0,0,t));
 91             system("shutdown /s");
 92             if(getch()==27)
 93                 system("shutdown -a");
 94             else 
 95                 break;
 96         }
 97     case 2:
 98         {
 99             strcpy(b,"多少分钟后关闭您的计算机?");
100             t=ch_s(b,d);
101             countdown(sum_second(0,t,0));
102             system("shutdown /s");
103             if(getch()==27)
104                 system("shutdown -a");
105             else 
106                 break;
107         }
108     case 3:
109         {
110             strcpy(b,"多少小时后关闭您的计算机?");
111             t=ch_s(b,d);
112             countdown(sum_second(t,0,0));
113             system("shutdown /s");
114             if(getch()==27)
115                 system("shutdown -a");
116             else 
117                 break;
118         }
119     }
120     }
121 case 2:
122     {
123         strcpy(a,"何时重启您的计算机?");
124         strcpy(d,"距重启还有:");
125         ch_f(a);
126         scanf("%d",&c);
127     switch(c)
128     {
129     case 1:
130         {
131             strcpy(b,"多少秒钟后重启您的计算机?");
132             t=ch_s(b,d);
133             countdown(sum_second(0,0,t));
134             system("shutdown /r");
135             if(getch()==27)
136                 system("shutdown -a");
137             else 
138                 break;
139         }
140     case 2:
141         {
142             strcpy(b,"多少分钟后重启您的计算机?");
143             t=ch_s(b,d);
144             countdown(sum_second(0,t,0));
145             system("shutdown /r");
146             if(getch()==27)
147                 system("shutdown -a");
148             else 
149                 break;
150         }
151     case 3:
152         {
153             strcpy(b,"多少小时后重启您的计算机?");
154             t=ch_s(b,d);
155             countdown(sum_second(t,0,0));
156             system("shutdown /r");
157             if(getch()==27)
158                 system("shutdown -a");
159             else 
160                 break;
161         }
162     }
163     }
164 case 3:
165     {
166         strcpy(a,"何时注销您的计算机?");
167         strcpy(d,"距注销还有:");
168         ch_f(a);
169         scanf("%d",&c);
170         switch(c)
171     {
172     case 1:
173         {
174             strcpy(b,"多少秒钟后注销您的计算机?");
175             t=ch_s(b,d);
176             countdown(sum_second(0,0,t));
177             system("shutdown /l");
178         }
179     case 2:
180         {
181             strcpy(b,"多少分钟后注销您的计算机?");
182             t=ch_s(b,d);
183             countdown(sum_second(0,t,0));
184             system("shutdown /l");
185         }
186     case 3:
187         {
188             strcpy(b,"多少小时后注销您的计算机?");
189             t=ch_s(b,d);
190             countdown(sum_second(t,0,0));
191             system("shutdown /l");
192         }
193     }
194     }
195     case 0: break;
196 }
197 }