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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>page_a71</title> <link rel="stylesheet" href="reset.css" type="text/css" media="all"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </head> <body> <table summary="top nav" border="0" width="100%"> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_a70.html">< previous page</a></td> <td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_a71</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_a72.html">next page ></a></td> </tr> <tr> <td align="left" colspan="3" style="background: #ffffff; padding: 20px;"> <table border="0" width="100%" cellpadding="0"><tr><td align="center"> <table border="0" cellpadding="2" cellspacing="0" width="100%"><tr><td align="left"></td> <td align="right"></td> </tr></table></td></tr><tr><td align="left"><p></p><table border="0" cellspacing="0" cellpadding="0" width="100%"><tr><td align="right"><font face="Times New Roman, Times, Serif" size="2" color="#FF0000">Page A71</font></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"><img src="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" border="0" width="24" height="1" alt="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" /></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">void聽TimeType::WriteAmPm()聽const<br />{<br />聽聽聽聽Boolean聽am;聽聽聽聽聽聽聽聽//聽True聽if聽AM聽should聽be聽printed<br />聽聽聽聽int聽聽聽聽聽tempHrs;聽聽聽//聽Value聽of聽hours聽to聽be聽printed<br /><br />聽聽聽聽am聽=聽(hrs聽<=聽11);<br />聽聽聽聽if聽(hrs聽==聽0)<br />聽聽聽聽聽聽聽聽tempHrs聽=聽12;<br />聽聽聽聽else聽if聽(hrs聽>=聽13)<br />聽聽聽聽聽聽聽聽tempHrs聽=聽hrs聽-聽12;<br />聽聽聽聽else<br />聽聽聽聽聽聽聽聽tempHrs聽=聽hrs;<br /><br />聽聽聽聽if聽(tempHrs聽<<聽10)<br />聽聽聽聽聽聽聽聽cout聽<<聽0;<br />聽聽聽聽cout聽<<聽tempHrs聽<<聽:;<br />聽聽聽聽if聽(mins聽<<聽10)<br />聽聽聽聽聽聽聽聽cout聽<<聽0;<br />聽聽聽聽cout聽<<聽mins聽<<聽:;<br />聽聽聽聽if聽(sees聽<<聽10)<br />聽聽聽聽聽聽聽聽cout聽<<聽0;<br />聽聽聽聽cout聽<<聽sees;<br />聽聽聽聽if聽(am)<br />聽聽聽聽聽聽聽聽cout聽<<聽AM;<br />聽聽聽聽else<br />聽聽聽聽cout聽<<聽聽PM;<br />}</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">4. Function specification (within the </font><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">TimeType</font><font face="Times New Roman, Times, Serif" size="3"> class declaration):</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"><img src="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" border="0" width="24" height="1" alt="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" /></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">long聽Minus(聽/*聽in聽*/聽TimeType聽time2聽)聽const;<br />聽聽聽聽//聽Precondition:<br />聽聽聽聽//聽聽聽聽聽This聽time聽and聽time2聽represent聽times聽in聽the聽same聽day<br />聽聽聽聽//聽Postcondition:<br />聽聽聽聽//聽聽聽聽聽Function聽value聽==聽(this聽time)聽-聽time2,聽in聽seconds</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"><img src="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" border="0" width="29" height="1" alt="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" /></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Times New Roman, Times, Serif" size="3">Function definition (omitting the precondition and postcondition to save space):</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table><table border="0" cellspacing="0" cellpadding="0"><tr><td rowspan="5"><img src="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" border="0" width="24" height="1" alt="3e26ecb1b6ac508ae10a0e39d2fb98b2.gif" /></td> <td colspan="3" height="12"></td> <td rowspan="5"></td></tr><tr><td colspan="3"></td></tr><tr><td></td> <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="2">long聽TimeType::Minus(聽/*聽in聽*/聽TimeType聽time2聽)聽const<br />{<br />聽聽聽聽long聽thisTimeInSecs;聽聽聽//聽This聽time聽in聽seconds聽since聽midnight<br />聽聽聽聽long聽time2InSecs;聽聽聽聽聽聽//聽time2聽in聽seconds聽since聽midnight<br /><br />聽聽聽聽//聽Using聽3600聽seconds聽per聽hour聽and聽60聽seconds聽per聽minute<br /><br />聽聽聽聽thisTimeInSecs聽=聽long(hrs)*3600聽+聽long(mins)*60聽+聽long(sees);<br />聽聽聽聽time2InSecs聽=聽long(time2.hrs)*3600聽+聽long(time2.mins)*60聽+<br />聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽long(time2.sees);<br />聽聽聽聽return聽thisTimeInSecs聽-聽time2InSecs;<br />}</font></td><td></td></tr><tr><td colspan="3"></td></tr><tr><td colspan="3" height="1"></td></tr></table></td></tr></table><p><font size="0"></font></p>聽 </td> </tr> <tr> <td align="left" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_a70.html">< previous page</a></td> <td align="center" width="40%" style="background: #EEF3E2"><strong style="color: #2F4F4F; font-size: 120%;">page_a71</strong></td> <td align="right" width="30%" style="background: #EEF3E2"><a style="color: blue; font-size: 120%; font-weight: bold; text-decoration: none; font-family: verdana;" href="page_a72.html">next page ></a></td> </tr> </table> </body> </html>⌨️ 快捷键说明
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