要求:产品库存管理——创建一个管理产品库存的应用。
建立一个产品类:价格、id、库存数量。
建立一个库存类:记录各种产品并能计算库存的总价值。
理论分析:【python 面向对象编程实例练习:建立一个产品库存管理】
产品类:product.h
#ifndef PRODUCT_H
#define PRODUCT_H
#include<iostream>
#include<string>
using namespace std;
class product{
public:
string name;
double price;
int number;
int index;
product(){
}
product(string n, double p, int num, int ind){
name = n;
price = p;
number = num;
index = ind;
}
~product(){
}
};
#endif
库存类:stock.h
#ifndef PRODUCT_H
#define PRODUCT_H
#include<iostream>
using namespace std;
class stock{
public:
product p[100];
int n=0;
stock();
~stock();
void add(product t);
void dele(product t);
void List(string l);
void List(int l);
void List_all();
};
#endif
stock.cpp
#include"stock.h"
#include"product.h"
#include<string>
using namespace std;
void stock::add(product t){
if (n >0){
int flag = 0;
for (int i = 0; i < n; i++){
if (p[i].index == t.index){
p[i].number += t.number;
flag = 1;
break;
}
if (flag != 0){
p[n] = t;
n++;
}
}
}
else{
p[n] = t;
n++;
}
cout << "添加成功!!" << endl;
}
void stock::dele(product t){
int flag = 0;
for (int i = 0; i < n; i++){
if (p[i].index == t.index&&p[i].name == t.name){
flag = 1;
if (p[i].number >= t.number){
p[i].number -= t.number;
cout << "产品ID:" << p[i].index;
cout << " | 产品名称:" << p[i].name;
cout << " | 产品剩余数量:" << p[i].number;
cout << " | 产品价格:" << p[i].price << endl;
}
else{
cout << "产品ID:" << p[i].index;
cout << " | 产品名称:" << p[i].name;
cout << " | 产品剩余数量:" << p[i].number;
cout << " | 产品价格:" << p[i].price << endl;
cout << "库存数目不足!!" << endl;
}
}
if (flag == 0) cout << "库存中没有该产品!!" << endl;
}
}
void stock::List(string l){
int flag = 0;
for (int i = 0; i < n; i++){
if (p[i].name == l){
flag = 1;
cout << "产品ID:" << p[i].index;
cout << " | 产品名称:" << p[i].name;
cout << " | 产品剩余数量:" << p[i].number;
cout << " | 产品价格:" << p[i].price << endl;
}
}
if (flag == 0) cout << "库存中没有该产品!!" << endl;
}
void stock::List(int l){
int flag = 0;
for (int i = 0; i < n; i++){
if (p[i].index == l){
flag = 1;
cout << "产品ID:" << p[i].index;
cout << " | 产品名称:" << p[i].name;
cout << " | 产品剩余数量:" << p[i].number;
cout << " | 产品价格:" << p[i].price << endl;
}
}
if (flag == 0) cout << "库存中没有该产品!!" << endl;
}
void stock::List_all(){
int num = 0;
double cost = 0;
for (int i = 0; i < n; i++){
if (p[i].number!=0){
num += p[i].number;
cost += p[i].number*p[i].price;
cout << "产品ID:" << p[i].index;
cout << " | 产品名称:" << p[i].name;
cout << " | 产品剩余数量:" << p[i].number;
cout << " | 产品价格:" << p[i].price << endl;
}
}
cout << "-----------------------------------------------------------------" << endl;
cout << "'总计: | | 产品总数:" << num << " | 产品总价:" << cost << endl;
}
stock::stock(){}
stock::~stock(){}
测试:main.cpp
#include<iostream>
#include"product.h"
#include"stock.h"
using namespace std;
int main(){
stock s;
cout << "*************test 1**************" << endl;
cout << endl;
product p1("apple",100,2,100001);
s.add(p1);
cout << "*************test 2**************" << endl;
cout << endl;
s.List_all();
cout << "*************test 3**************" << endl;
cout << endl;
product p2("apple", 100, 1, 100001);
s.dele(p2);
cout << "*************test 4**************" << endl;
cout << endl;
s.List("apple");
s.List(100001);
cout << "*************test 5**************" << endl;
cout << endl;
product p3("apple", 100, 2, 100001);
s.dele(p3);
cout << "*************test 6**************" << endl;
cout << endl;
product p4("appl", 100, 2, 100001);
s.dele(p4);
system("pause");
return -1;
}
结果: