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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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<h2><font color="#009999">17.2&nbsp;&nbsp;Case Study: Fractional
	Numbers</font></h2>
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<p>New type to represent a ratio of 2 integers:</p>

<blockquote><tt>
	Fraction a( 3, 4 );  <font color="#0000cc">// Represents 3/4</font><br>
	Fraction b( 7 );  <font color="#0000cc">// Represents 7/1</font><br>
</tt></blockquote>

<p>Fractions should behave as other numbers:</p>

<blockquote>
<pre>Fraction c( 1, 2 );
   if( a &lt; b )
      c = b - a;
   else
      c = a - b;
   cout &lt;&lt; &quot;Value is &quot; &lt;&lt; c &lt;&lt; &quot;\n&quot;;</pre>
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