电脑定时关机—— c 语言

有时电脑需要开着，比如说在很大的压缩文件，需要很长时间。但这时正好有事儿要出去，电脑压缩完又没人关。这时就需要定时关机。下面我用C语言把定时关机程序编写出来。

#include<stdio.h>
#include<time.h> <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><span style="color:#009933">// 申明调用时间函数</span><br> #include&lt;stdlib.h&gt; <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><span style="color:#009933">// 申明调用其他函数<br></span><span style="color:#ff0033">int main(void)<br> {<br><wbr>system("COLOR 0A");<br><wbr>int i; int j;<br><wbr>struct tm *local; <wbr></wbr></wbr></wbr></wbr></span></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

<wbr>time_t t; <wbr><br><wbr>t=time(NULL); <wbr></wbr></wbr></wbr></wbr>

<wbr>local=localtime(&amp;t); <wbr><wbr><br><wbr>i=local-&gt;tm_hour;<br><span style="color:#000000"><wbr>if(i&gt;12){<br><wbr><wbr>printf("\n <wbr><wbr>当前时间是下午 %d 点!\n\n",i%12); <wbr>} <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><br><wbr>else</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></span><br></wbr></wbr></wbr></wbr><wbr><wbr>printf("\n <wbr><wbr>当前时间是上午 %d 点\n",i); <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><span style="color:#009933">// 显示当前时间<br></span><wbr>printf("\n <wbr><wbr>请输入要关机时间(如下午2点：输入14)："); <span style="color:#009933"> // 显示设置提示</span> <wbr><br><wbr><br><wbr>scanf("%d",&amp;j); <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><span style="color:#009933">// 设置关机时间</span><br><wbr><br><wbr>printf("\n");<br><wbr>printf("\n <wbr><wbr>您的设置已经成功 ！时间一到就关机 ！\n\n");</wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

<wbr>if(i&gt;=j){<br><wbr><wbr>system("shutdown -s -t 10"); <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><br><wbr><wbr>printf("系统将在10秒内关机!");} <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><span style="color:#009933">// <wbr>到了设置时间，在10秒内关机<br></wbr></span><wbr>return 0;<br> } <wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr><wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>

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http://blog.sina.com.cn/dongwu2009