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cout<<¡°x=y¡±< cout<<¡°x!=y¡±< void disp() { cout<<¡°x=¡±< void main() { Sample s1,s2(2,3); s1.disp(); s2.disp(); } ½â£º x=0,y=0 x=2,y=3 x!=y x=y 2.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include return x+y; } int add(int x,int y,int z) { return x+y+z; } void main() { int a=4,b=6,c=10; cout< 10,20 3.·ÖÎöÒÔϳÌÐòÖ´Ðнá¹û #include return x+y; } double add(double x,double y) { return x+y; } void main() { int a=4,b=6; double c=2.6,d=7.4; cout< 4.·ÖÎöÒÔϳÌÐòÖ´ÐеĽá¹û #include int x,y; public: Sample(){x=y=0;} Sample(int a,int b){x=a;y=b;} void disp() { cout<<\} }; void main() { Sample s1,s2(1,2),s3(10,20); Sample *pa[3]={&s1,&s2,&s3}; for(int i=0;i<3;i++) pa[i]->disp(); } ½â£º x=0,y=0 x=1,y=2 x=10,y=20 5. ·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û£º #include int n; public: base(){}; base (int a) { cout << \base class\<< endl; n=a; cout << \} ~base() { cout << \base class\<< endl; } }; class subs : public base { int m; public: subs(int a, int b) : base(a) { cout << \m=b; cout << \} ~subs() { cout << \sub class \endl; } }; void main () { subs s(1,2); } ½â£º constructing base class n= 1 constructing sub class m= 2 destructing sub class destructing base class 6.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û: - 2 - #include protected: int x; public: Sample() { x=0; } Sample(int val) { x=val; } void operator++() { x++; } }; class Derived:public Sample { int y; public: Derived():Sample(){ y=0; } Derived(int val1,int val2):Sample(val1){ y=val2; } void operator--(){ x--;y--;} void disp() { cout<<\} }; void main () { Derived d(3,5); d.disp(); d++; d.disp (); d--; d--; d.disp(); } ½â£º x=3,y=5 x=4,y=5 x=2,y=3 7 ·ÖÎöÒÔϳÌÐòÖ´Ðнá¹û£º #include public: A(char *s) { cout << s << endl; } ~A() {} - 3 - }; class B:public A { public: B(char *sl,char *s2) :A(sl) { cout << s2 << endl; } }; class C:public A { public: C(char *sl,char *s2) :A(sl) { cout << s2 << endl; } }; class D:public B,public C { public: D(char *sl,char *s2,char *s3,char *s4) :B(sl,s2),C(sl,s3) { cout << s4 << endl; } }; void main () { D d(\A\B\C\D\} ½â£º class A class B class A class C class D ²¹³äÀýÌâ 1.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include { return (x>y?x:y); } void main() { cout< < ½â´ð£º5,3.5 2£®·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include int a[]={10,20,30,40},*pa=a; int *&pb=pa; pb++; cout<<*pa< ½â´ð£º Êä³öΪ:20 3.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include { return (x>0?x:-x); } void main() { cout< ½â´ð£ºÊä³öΪ£º3£¬2.6 4.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include char c1,c2; public: Sample(char a){c2=(c1=a)-32;} void disp() { cout< void main() { Sample a('a'),b('b'); a.disp(); b.disp(); } ½â´ð£º aת»»ÎªA bת»»ÎªB 5.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include int &b=a; // ±äÁ¿ÒýÓà b=10; cout<<¡°a=¡±< ½â´ð£º Êä³öΪ£ºa=10 6.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include int x; public: Sample(){}; Sample(int a){x=a;} Sample(Sample &a){x=a.x++ +10;} void disp(){cout<<¡°x=¡±< void main() { Sample s1(2),s2(s1); s1.disp(); s2.disp(); } ½â´ð£º x=3 // ++ÔËËãµÄ½á¹û x=12 // 2+10 7.·ÖÎöÒÔϳÌÐòµÄÖ´Ðнá¹û #include int x; public: Sample(){}; Sample(int a){x=a;} Sample(Sample &a){x=a.x+1;} void disp(){cout<<¡°x=¡±< void main() { Sample s1(2),s2(s1); s2.disp(); } ½â´ð£º Êä³öΪ£ºx=3¡£ ³ÌÐò±àÖÆÌâÀýÌ⡾×ۺϷÖÎöÌâ¡¿ Àý1£¬Ð´³öÒ»¸öÌÝÐÎÀ࣬²Ù×÷ÓÐÇóÃæ»ýºÍÖܳ¤ - 4 -
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