7.10.cpp

这是C++的一部分练习程序!对初学者有一定的帮助作用。

#include <iostream.h>
#include <string.h>
struct stationery
{
	char name[20];
	int quantity;
	double price;
	union 
	{
		double thickness;
		char color[10];
	}model;
}arr[2];
void main()
{
	cout<<"Enter information(name quantity price thickness/color):\n";
	for(int i(0);i<2;i++)
	{
		cin>>arr[i].name>>arr[i].quantity>>arr[i].price;
		if(strcmp(arr[i].name,"pencil")==0)
			cin>>arr[i].model.thickness;
		else if(strcmp(arr[i].name,"ballpen")==0)
			cin>>arr[i].model.color;
	}
	cout<<"品名\t"<<"数量\t"<<"单价\t"<<"规格\n";
	for(i=0;i<2;i++)
	{
		if(strcmp(arr[i].name,"pencil")==0)
			cout<<arr[i].name<<'\t'<<arr[i].quantity<<'\t'<<arr[i].price<<'\t'<<
			          arr[i].model.thickness<<endl;
		else if(strcmp(arr[i].name,"ballpen")==0)
			cout<<arr[i].name<<'\t'<<arr[i].quantity<<'\t'<<arr[i].price<<'\t'<<
			          arr[i].model.color<<endl;
	}
}