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写出下列程序的执行结果是：__________________。#include #includeclass s{ public: s(){ str= '\0'; } s( char pstr ) { strcpy( str,pstr ); } char *gets() { return str; } friend s operator+( s obj1,s obj2 );private: char str[100]; };s operator+( s obj1,s obj2 ){ s tempobj; strcat( tempobj.str,obj1.str ); strcat( tempobj.str,obj2.str ); return tempobj; }void main(){ s obj1( "Visual" ),obj2( "C#" ),obj3; obj3 = obj1 + obj2; cout << obj3.gets() << endl;}

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写出下列程序的执行结果是：__________________。#include #includeusing namespace std;class s{ public: s(){ str = '\0'; } s( char pstr ) { strcpy( str,pstr ); } char gets() { return str; } s operator+( s obj );private: char str[10]; };s s::operator+( s obj ){ strcat( str,obj.str );return str; //或return this } void main(){ s obj1( "Visual"),obj2("C++"),obj3; obj3 = obj1 + obj2; cout << obj3.gets() << endl;}

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