检查库存

package main

import (
	"bufio"
	"fmt"
	"os"
	"sort"
	"strconv"
	"strings"
)

// Define the Product struct
type Product struct {
	Price    float64
	Quantity int
}

func main() {
	// Read input using bufio.Scanner to handle spaces properly
	scanner := bufio.NewScanner(os.Stdin)
	
	scanner.Scan()
	storeInfo := scanner.Text()
	
	scanner.Scan()
	productData := scanner.Text()
	
	// 1. Parse store information (split by comma)
	storeInfoParts := strings.Split(storeInfo, ",")
	storeName := ""
	location := ""
	if len(storeInfoParts) >= 2 {
		storeName = storeInfoParts[0]
		location = storeInfoParts[1]
	}
	
	// 2. Parse product data (split by comma, then by colon for each product)
	productEntries := strings.Split(productData, ",")
	
	// 3. Create inventory map
	inventory := make(map[string]Product)
	
	// 4. Convert strings to appropriate types and populate inventory
	for _, entry := range productEntries {
		parts := strings.Split(entry, ":")
		if len(parts) >= 3 {
			productName := parts[0]
			price, _ := strconv.ParseFloat(parts[1], 64)
			quantity, _ := strconv.Atoi(parts[2])
			
			inventory[productName] = Product{
				Price:    price,
				Quantity: quantity,
			}
		}
	}
	
	// 5. Display store information
	fmt.Printf("=== %s Inventory System ===\n", storeName)
	fmt.Printf("Location: %s\n", location)
	fmt.Printf("Inventory initialized with %d products\n", len(inventory))
	
	// 6. Display current inventory (sorted alphabetically)
	fmt.Println("Current Inventory:")
	var productNames []string
	for name := range inventory {
		productNames = append(productNames, name)
	}
	sort.Strings(productNames)
	
	for _, name := range productNames {
		product := inventory[name]
		fmt.Printf("- %s: $%.2f (Stock: %d)\n", name, product.Price, product.Quantity)
	}
	
	// 7. Calculate and display inventory statistics
	totalProducts := len(inventory)
	totalItems := 0
	totalValue := 0.0
	
	for _, product := range inventory {
		totalItems += product.Quantity
		totalValue += product.Price * float64(product.Quantity)
	}
	
	fmt.Println("Inventory Statistics:")
	fmt.Printf("Total Products: %d\n", totalProducts)
	fmt.Printf("Total Items in Stock: %d\n", totalItems)
	fmt.Printf("Total Inventory Value: $%.2f\n", totalValue)
	
	// 8. Display system status
	fmt.Println("System Status: Ready")
	fmt.Println("Inventory management system initialized successfully")
}