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資源簡介

1.自定義分數類fraction，使用該類可以完成分數的輸入、分數的加、減、乘、除二目運算和一目減運算、分數的約分操作、分數的倒數運算、對兩個分數進行六種比較運算、以及對分數的輸出等操作。 2.將其中使用的普通函數盡量改寫成運算符重載函數。如，可重載+、-、*、/、>、>=、<、<=、==、!=，以實現分數的各種運算。并且實現分數與整數的混合運算。 3.盡可能考慮程序的性能。 評分標準 1. 對兩個類的成員合理地使用訪問權限：1分 2. 實現分數與整數的混合運算：1分 3. 程序結構合理，布局清晰，正確地安排.h和.cpp：2分 4. 考慮程序的性能：1分 這個作業可以用到以下C++知識： 定義類，運算符重載、類型轉換。

資源截圖

代碼片段和文件信息 

/*
*?Copyright?（c）?2012?Zhejiang?University
*?All?rights?reserved.?
*?file?name?：fraction.cpp
*?version	：1.0
*?author	：Song?Yang
*?date		：2012-12-12
*/
#?include?
#?include?
#?include?
#?include?“fraction.h“

fraction::fraction（int?numer）{
	this->numerator?=?numer;
	this->denominator?=?1;
}
fraction::fraction（int?numerint?denomin）{
	this->numerator?=?numer;
	this->denominator?=?denomin;
}
fraction::fraction（const?fraction&?other）{
	numerator?=?other.numerator;
	denominator?=?other.denominator;
}
fraction&?fraction::operator=（const?fraction?&other）{
	numerator?=?other.numerator;
	denominator?=?other.denominator;
	return?*this;
}

std::string?fraction::toString（）{
	std::string?fractionStr;
	std::ostringstream?os;
	os<numerator;
	if（this->denominator?!=?1）{
		os<<“/“;
		os<denominator;
	}
	return?os.str（）;
}
void?fraction::input（）{
	std::cout<<“input?a?fraction?（e.g.?-2/24）:“<	std::string?tmpStr;
	std::cin>>tmpStr;
	size_t?found?=?tmpStr.find（‘/‘）;
	std::string?tmpNumStrtmpDenomStr;
	if（found?!=std::string::npos）{
		tmpNumStr?=?tmpStr.substr（0found）;
		tmpDenomStr?=?tmpStr.substr（found+1）;
		this->numerator?=?atoi（tmpNumStr.c_str（））;
		this->denominator?=?atoi（tmpDenomStr.c_str（））;
	}
	else{
		this->numerator?=?atoi（tmpStr.c_str（））;
		this->denominator?=?1;
	}
	std::cout<<“input?fraction?success:“<toString（）<	std::cout<<“-----------------------------------------“<}
void?fraction::reduce（）{
	int?gcdNum?=?this->gcd（numeratordenominator）;
	int?tmpNum?=?numerator?/?gcdNum;
	int?tmpDen?=?denominator?/?gcdNum;
	numerator?=?tmpNum;
	denominator?=?tmpDen;
}
fraction?fraction::opposite（void）{
	fraction?reciprocalFrac（-numerator?denominator）;
	reciprocalFrac.reduce（）;
	return?reciprocalFrac;
}
fraction?fraction::reciprocal（void）{
	fraction?reciprocalFrac（denominator?numerator）;
	if?（numerator?	{
		reciprocalFrac.denominator?*=?-1;
		reciprocalFrac.numerator?*=?-1;
	}
	reciprocalFrac.reduce（）;
	return?reciprocalFrac;
}

fraction?fraction::add（const?fraction?&other）{
	int?tmpNum?=?numerator*other.denominator?+?denominator*other.numerator;
	int?tmpDen?=?denominator*other.denominator;
	fraction?sumResult（tmpNumtmpDen）;
	sumResult.reduce（）;
	return?sumResult;
}
fraction?fraction::minus（const?fraction?&other）{
	int?tmpNum?=?numerator*other.denominator?-?denominator*other.numerator;
	int?tmpDen?=?denominator*other.denominator;
	fraction?diffResult（tmpNumtmpDen）;
	diffResult.reduce（）;
	return?diffResult;
}
fraction?fraction::multiple（const?fraction?&other）{
	int?tmpNum?=?numerator*other.numerator;
	int?tmpDen?=?denominator*other.denominator;
	fraction?multipleResult（tmpNumtmpDen）;
	multipleResult.reduce（）;
	return?multipleResult;
}
fraction?fraction::divide（const?fraction?&other）{
	int?tmpNum?=?numerator*other.denominator;
	int?tmpDen?=?denominator*other.numerator;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????81920??2012-12-13?05:28??Fraction\debug\Fraction.exe

?????文件?????439716??2012-12-13?05:28??Fraction\debug\Fraction.ilk

?????文件?????543744??2012-12-13?05:28??Fraction\debug\Fraction.pdb

?????文件???????8906??2012-12-13?05:28??Fraction\Fraction\Debug\BuildLog.htm

?????文件????????403??2012-12-13?05:28??Fraction\Fraction\Debug\Fraction.exe.embed.manifest

?????文件????????468??2012-12-13?05:28??Fraction\Fraction\Debug\Fraction.exe.embed.manifest.res

?????文件????????385??2012-12-13?05:28??Fraction\Fraction\Debug\Fraction.exe.intermediate.manifest

?????文件?????113735??2012-12-13?05:27??Fraction\Fraction\Debug\fraction.obj

?????文件?????????65??2012-12-13?05:28??Fraction\Fraction\Debug\mt.dep

?????文件??????94222??2012-12-13?05:28??Fraction\Fraction\Debug\testFraction.obj

?????文件?????224256??2012-12-13?05:28??Fraction\Fraction\Debug\vc80.idb

?????文件?????208896??2012-12-13?05:28??Fraction\Fraction\Debug\vc80.pdb

?????文件???????7021??2012-12-13?04:51??Fraction\Fraction\fraction.cpp

?????文件???????2191??2012-12-13?04:49??Fraction\Fraction\fraction.h

?????文件???????4166??2012-12-13?03:44??Fraction\Fraction\Fraction.vcproj

?????文件???????1423??2012-12-13?05:28??Fraction\Fraction\Fraction.vcproj.laiconglin-PC.laiconglin.user

?????文件????????687??2012-12-13?05:16??Fraction\Fraction\funcUtil.h

?????文件???????4096??2012-12-13?05:28??Fraction\Fraction\testFraction.cpp

?????文件????1403904??2012-12-13?05:28??Fraction\Fraction.ncb

?????文件????????889??2012-12-12?02:04??Fraction\Fraction.sln

????..A..H.?????13312??2012-12-13?05:28??Fraction\Fraction.suo

?????目錄??????????0??2012-12-13?05:28??Fraction\Fraction\Debug

?????目錄??????????0??2012-12-13?05:28??Fraction\debug

?????目錄??????????0??2012-12-13?05:28??Fraction\Fraction

?????目錄??????????0??2012-12-12?03:42??Fraction

-----------?---------??----------?-----??----

??????????????3154405????????????????????25


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