课本习题答案ch03和04

1、 、。 、。void（3）public（）回值，而且不能重载；（3）一个类有且仅有一个析构函数，且应public（4）在对象的生 作为函数实参传递给函数形参时；（作为函数实参传递给函数形参时；（3）当对象作为函数的返回值，创建一个临时对象。 #include stdafx.h #include iostream usingnamespastruct Poclass n.b Rectanglereturn 0; #includestdafx.h class dacharx; ype(charx1); ype(charype(double returnreturnx*yreturn2*(x+y)

2、#include stdafx.h #include iostream usingnamespaclass RectangledoubleRectangle(doubleLength=10.,doubleWidth=5.); double Area();doubledouble Rectangledouble area12; return 0; 、#include stdafx.h #include iomanip #include iostream using namespastruct Employeeslong、#include stdafx.h #include iomanip #in

3、clude iostream using namespastruct Employeeslongcharcharchar profeschar floatclass void return returncaseEmployeesx; 、caseEmployeesx; 、 ;casecasereturncout2.删除endl; cout0.退出endl; return -1;return 0;return coutthiselementdontexist!endl; return -1;_seq #includestdafx.h class Complex#includestdafx.h cl

4、ass Complex plex 3. 3. （ #include stdafx.h #include usingnamespaclass Avoidvoidoutput()A constA a2.outputreturn 0;voidvoidA:output()、#include stdafx.h #include usingnamespaclass Student、#include stdafx.h #include usingnamespaclass Studentchar sex3;#include stdafx.h #include usingnamespaclass AvoidA

5、return 0;doubleic void Output();voiddoubleStudent:totalScore=0;doubleic void Output();voiddoubleStudent:totalScore=0; Student Student Student Student Studentstu5.StudentInformation(); Student:Output ();return #include stdafx.h #include usingnamespaclass Studentdouble score;icdoubleicdoublelowestScor

6、e; ic void Output();voiddoubleStudent:totalScore=0; doubleStudent:lowestScoreStudentstu1(1001,stu1.StudentInformation (); Student stu2(1002,83.); stu2.StudentInformation (); Student stu3(1003,93.); stu3.StudentInformation (); Studentstu4(1004,stu4.StudentInformation (); Student stu5(1005,77.); stu5.StudentInformation (); Student:Output ();return if#include stdafx.h #include usingnamespa#include stdafx.h #include usingnamespaclass Complexdouble real; doublefriend class Vector;Vectordoub le x