股票收益计算

复制def stock_profit(buy_price: float, sell_price: float, shares: int) -> dict:
    """
    计算单笔股票交易的盈亏（不含手续费和税费）
    """
    cost = buy_price * shares
    revenue = sell_price * shares
    profit = revenue - cost
    return {
        "cost": round(cost, 2),
        "revenue": round(revenue, 2),
        "profit": round(profit, 2),
        "return_pct": round((profit / cost) * 100, 2) if cost != 0 else 0
    }

# 示例：买入价 10.5，卖出价 12.8，数量 1000 股
result = stock_profit(10.5, 12.8, 1000)
print(result)
# 输出：{'cost': 10500.0, 'revenue': 12800.0, 'profit': 2300.0, 'return_pct': 21.9}

复制package main

import (
	"fmt"
)

// StockProfit 计算股票盈亏
func StockProfit(buyPrice, sellPrice float64, shares int) (cost, revenue, profit float64, returnPct float64) {
	cost = buyPrice * float64(shares)
	revenue = sellPrice * float64(shares)
	profit = revenue - cost
	if cost != 0 {
		returnPct = (profit / cost) * 100
	}
	return
}

func main() {
	cost, revenue, profit, returnPct := StockProfit(10.5, 12.8, 1000)
	fmt.Printf("成本: %.2f, 收入: %.2f, 盈亏: %.2f, 收益率: %.2f%%\n", cost, revenue, profit, returnPct)
	// 输出：成本: 10500.00, 收入: 12800.00, 盈亏: 2300.00, 收益率: 21.90%
}

复制/**
 * 计算股票交易盈亏
 * @param {number} buyPrice - 买入价
 * @param {number} sellPrice - 卖出价
 * @param {number} shares - 股数
 * @returns {{cost: number, revenue: number, profit: number, returnPct: number}}
 */
function stockProfit(buyPrice, sellPrice, shares) {
    const cost = buyPrice * shares;
    const revenue = sellPrice * shares;
    const profit = revenue - cost;
    const returnPct = cost !== 0 ? (profit / cost) * 100 : 0;
    return {
        cost: Math.round(cost * 100) / 100,
        revenue: Math.round(revenue * 100) / 100,
        profit: Math.round(profit * 100) / 100,
        returnPct: Math.round(returnPct * 100) / 100
    };
}

// 示例
console.log(stockProfit(10.5, 12.8, 1000));
// 输出：{ cost: 10500, revenue: 12800, profit: 2300, returnPct: 21.9 }