1 #include using namespace std; class Time { public: void set_time(); void show_time(); private: //成员改为公用的 int hour; int minute; int sec; }; void Time::set_time() //在 main 函数之前定义 { cin>>hour; cin>>minute; cin>>sec; } void Time::show_time() //在 main 函数之前定义 { cout< using namespace std; class Time {public: void set_time(void) {cin>>hour; cin>>minute; cin>>sec; } void show_time(void) {cout< using namespace std; class Time {public: void set_time(void); void show_time(void); private: int hour; int minute; int sec; }; void Time::set_time(void) {cin>>hour; cin>>minute; cin>>sec; } void Time::show_time(void) {cout< using namespace std; #include "xt2-4.h" int main() {Student stud; stud.set_value(); stud.display(); return 0; } //xt2-4-2.cpp(即student.cpp) #include "xt2-4.h" //在此文件中进行函数的定义 #include using namespace std; //不要漏写此行 void Student::display( ) { cout<<"num:"<>num; cin>>name; cin>>sex; } 5: //xt2-5-1.cpp(file1.cpp) #include #include "xt2-5.h" int main() {Array_max arrmax; arrmax.set_value(); arrmax.max_value(); arrmax.show_value(); return 0; } //xt2-5-2.cpp(arraymax.cpp) #include using namespace std; #include "xt2-5.h" void Array_max::set_value() { int i; for (i=0;i...