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📁 一些关于vc的问答
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序号:14332 发表者:毛毛虫 发表日期:2002-09-05 22:04:11
<br>主题:好笑就笑吧,笑过了可别忘了告诉我错在哪里。
<br>内容:/********************************************************************<BR>计算任意两个日期之间相隔多少天<BR>例如2002-01-01到2002-01-31相隔30天<BR>*********************************************************************/<BR>#include &lt;iostream.h&gt;<BR><BR>//声明两个变量用于存放待比较的两个日期<BR>struct date {int year, month, day;};<BR>date date1,date2,temp,x,y;<BR><BR>//交换两个日期的值<BR>inline void swap (x,y)<BR>{temp=x; x=y; y=temp}<BR><BR>//判断闰年,是就返回1<BR>inline int leapYear(yea)<BR>{if (yea%4=0 || yea%100 !=0&nbsp;&nbsp;&& yea%400=0) return 1;}<BR><BR>void main()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;//输入需要比较的两个日期<BR>&nbsp;&nbsp;&nbsp;&nbsp;cin &gt;&gt;date1.year&gt;&gt;date1.month&gt;&gt;date1.day&gt;&gt;date2.year&gt;&gt;date2.month&gt;&gt;date2.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;&nbsp;&nbsp;//先比较两个日期的大小<BR>&nbsp;&nbsp;&nbsp;&nbsp;int i=1; //用于确定两个日期的位置是否交换过,1是没交换,-1是交换<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date1.year&gt;date2.year) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{swap (date1,date2);i=-1;<BR>&nbsp;&nbsp;&nbsp;&nbsp; else if (date1.month &gt;date2.month)<BR>&nbsp;&nbsp;&nbsp;&nbsp; {swap (date1,date2); i=-1;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else if (date1.day &gt; date2.day)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;swap (date1,date2); i=-1; }<BR>&nbsp;&nbsp;&nbsp;&nbsp;}<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//定义个表示每个月各有多少天的数组<BR>&nbsp;&nbsp;&nbsp;&nbsp;int mouthDay[13]={31,31,28,31,30,31,30,31,31,30,31,30,31};<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//用大日期减去小日期<BR>&nbsp;&nbsp;&nbsp;&nbsp;int datys=0;&nbsp;&nbsp;//初始化相差的天数为0&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;//先比较天<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date2.day &lt; date1.day) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{int outMonth=date2.month-1;&nbsp;&nbsp;//存放上个月是哪月<BR>&nbsp;&nbsp;&nbsp;&nbsp; date2.day += mouthDay[outMonth];<BR>&nbsp;&nbsp;&nbsp;&nbsp; if (leapYear(date2.year)=1 || outMonth=2)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; date2.day+=1;<BR>&nbsp;&nbsp;&nbsp;&nbsp; date2.month -= 1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;days=date2.day-date1.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp;//再比较月<BR>&nbsp;&nbsp;&nbsp;&nbsp;int mouth1 =0; int mouth2 =0;<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (int i=1;i&lt;date2.month;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth2 += mouthDay[i];}<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date2.month &lt; date1.month) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth2 +=365;<BR>&nbsp;&nbsp;&nbsp;&nbsp;date2.year -= 1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;mouth2 += leapYear(date2.year);<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (int i=1;i&lt;date1.month;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth1 += mouthDay[i];}<BR>&nbsp;&nbsp;&nbsp;&nbsp;days += (mouth2 - mouth1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;//最后比较年<BR>&nbsp;&nbsp;&nbsp;&nbsp;days += (date2.year -date1.year)*365;<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (i=date1.year ; i&lt;date2.year ;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{days += leapYeat(i);}<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//输出结果<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt;date2.year&lt;&lt;"-"&lt;&lt;date2.month&lt;&lt;"-"&lt;&lt;date2.day&lt;&lt;"比";<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt;date1.year&lt;&lt;"-"&lt;&lt;date1.month&lt;&lt;"-"&lt;&lt;date1.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (i=-1)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{cout &lt;&lt;"少"&lt;&lt;days&lt;&lt;"天 \n";<BR>&nbsp;&nbsp;&nbsp;&nbsp;else cout &lt;&lt;"多"&lt;&lt;days&lt;&lt;"天 \n";}<BR>}<BR><BR>--------------------Configuration: 小模块 - Win32 Debug--------------------<BR>Compiling...<BR>001.cpp<BR>F:\资料\编程\编程练习\小模块\001.cpp(13) : error C2448: '&lt;Unknown&gt;' : function-style initializer appears to be a function definition<BR>F:\资料\编程\编程练习\小模块\001.cpp(16) : error C2065: 'yea' : undeclared identifier<BR>F:\资料\编程\编程练习\小模块\001.cpp(17) : error C2448: '&lt;Unknown&gt;' : function-style initializer appears to be a function definition<BR>F:\资料\编程\编程练习\小模块\001.cpp(27) : error C2065: 'swap' : undeclared identifier<BR>F:\资料\编程\编程练习\小模块\001.cpp(28) : error C2181: illegal else without matching if<BR>F:\资料\编程\编程练习\小模块\001.cpp(30) : error C2181: illegal else without matching if<BR>F:\资料\编程\编程练习\小模块\001.cpp(43) : error C2065: 'leapYear' : undeclared identifier<BR>F:\资料\编程\编程练习\小模块\001.cpp(43) : error C2106: '=' : left operand must be l-value<BR>F:\资料\编程\编程练习\小模块\001.cpp(46) : error C2065: 'days' : undeclared identifier<BR>F:\资料\编程\编程练习\小模块\001.cpp(49) : error C2374: 'i' : redefinition; multiple initialization<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;F:\资料\编程\编程练习\小模块\001.cpp(25) : see declaration of 'i'<BR>F:\资料\编程\编程练习\小模块\001.cpp(55) : error C2374: 'i' : redefinition; multiple initialization<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;F:\资料\编程\编程练习\小模块\001.cpp(25) : see declaration of 'i'<BR>F:\资料\编程\编程练习\小模块\001.cpp(61) : error C2065: 'leapYeat' : undeclared identifier<BR>F:\资料\编程\编程练习\小模块\001.cpp(68) : error C2181: illegal else without matching if<BR>Error executing cl.exe.<BR><BR>001.obj - 13 error(s), 0 warning(s)
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回复者:雷神 回复日期:2002-09-06 08:49:51
<br>内容:{if (yea%4=0 || yea%100 !=0&nbsp;&nbsp;&& yea%400=0) return 1;}<BR>1、=是赋值应该==<BR>2、yea 是否应该为year<BR>3\......<BR><BR>先看看语法有没有错吧,还有笔误造成的,然后再说。
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<font color=red>答案被接受</font><br>回复者:天才 回复日期:2002-09-06 08:50:35
<br>内容:/********************************************************************<BR>计算任意两个日期之间相隔多少天<BR>例如2002-01-01到2002-01-31相隔30天<BR>*********************************************************************/<BR>#include &lt;iostream.h&gt;<BR>#include &lt;time.h&gt;<BR><BR>//声明两个变量用于存放待比较的两个日期<BR>struct date {int year, month, day;};<BR>date date1,date2,temp,x,y;<BR><BR>//交换两个日期的值<BR>inline void swap (date x,date y)<BR>{temp=x; x=y; y=temp;}<BR><BR>//判断闰年,是就返回1<BR>inline int leapYear(int yea)<BR>{if (yea%4==0 || yea%100 !=0&nbsp;&nbsp;&& yea%400==0) return 1;return 0;}<BR><BR>void main()<BR>{<BR>&nbsp;&nbsp;&nbsp;&nbsp;//输入需要比较的两个日期<BR>&nbsp;&nbsp;&nbsp;&nbsp;cin &gt;&gt;date1.year&gt;&gt;date1.month&gt;&gt;date1.day&gt;&gt;date2.year&gt;&gt;date2.month&gt;&gt;date2.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp; <BR>&nbsp;&nbsp;&nbsp;&nbsp;//先比较两个日期的大小<BR>&nbsp;&nbsp;&nbsp;&nbsp;int i=1; //用于确定两个日期的位置是否交换过,1是没交换,-1是交换<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date1.year&gt;date2.year) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{swap (date1,date2);i=-1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp; else if (date1.month &gt;date2.month)<BR>&nbsp;&nbsp;&nbsp;&nbsp; {swap (date1,date2); i=-1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else if (date1.day &gt; date2.day)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{swap (date1,date2); i=-1; }<BR>&nbsp;&nbsp;&nbsp;&nbsp;<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//定义个表示每个月各有多少天的数组<BR>&nbsp;&nbsp;&nbsp;&nbsp;int mouthDay[13]={31,31,28,31,30,31,30,31,31,30,31,30,31};<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//用大日期减去小日期<BR>&nbsp;&nbsp;&nbsp;&nbsp;int days=0;&nbsp;&nbsp;//初始化相差的天数为0&nbsp;&nbsp;&nbsp;&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp;//先比较天<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date2.day &lt; date1.day) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{int outMonth=date2.month-1;&nbsp;&nbsp;//存放上个月是哪月<BR>&nbsp;&nbsp;&nbsp;&nbsp; date2.day += mouthDay[outMonth];<BR>&nbsp;&nbsp;&nbsp;&nbsp; if (leapYear(date2.year)==1 || outMonth==2)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; date2.day+=1;<BR>&nbsp;&nbsp;&nbsp;&nbsp; date2.month -= 1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;days=date2.day-date1.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp;//再比较月<BR>&nbsp;&nbsp;&nbsp;&nbsp;int mouth1 =0; int mouth2 =0;<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (i=1;i&lt;date2.month;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth2 += mouthDay[i];}<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (date2.month &lt; date1.month) <BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth2 +=365;<BR>&nbsp;&nbsp;&nbsp;&nbsp;date2.year -= 1;}<BR>&nbsp;&nbsp;&nbsp;&nbsp;mouth2 += leapYear(date2.year);<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (i=1;i&lt;date1.month;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{mouth1 += mouthDay[i];}<BR>&nbsp;&nbsp;&nbsp;&nbsp;days += (mouth2 - mouth1);<BR>&nbsp;&nbsp;&nbsp;&nbsp;//最后比较年<BR>&nbsp;&nbsp;&nbsp;&nbsp;days += (date2.year -date1.year)*365;<BR>&nbsp;&nbsp;&nbsp;&nbsp;for (i=date1.year ; i&lt;date2.year ;i++)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{days += leapYear(i);}<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;//输出结果<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt;date2.year&lt;&lt;"-"&lt;&lt;date2.month&lt;&lt;"-"&lt;&lt;date2.day&lt;&lt;"比";<BR>&nbsp;&nbsp;&nbsp;&nbsp;cout &lt;&lt;date1.year&lt;&lt;"-"&lt;&lt;date1.month&lt;&lt;"-"&lt;&lt;date1.day;<BR>&nbsp;&nbsp;&nbsp;&nbsp;if (i=-1)<BR>&nbsp;&nbsp;&nbsp;&nbsp;{cout &lt;&lt;"少"&lt;&lt;days&lt;&lt;"天 \n";}<BR>&nbsp;&nbsp;&nbsp;&nbsp;else {cout &lt;&lt;"多"&lt;&lt;days&lt;&lt;"天 \n";}<BR>}<BR>
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