public class AccountTest {
    public static void main(String[] args) {
        // 创建账户，初始余额 1000 元
        Account account = new Account(1000.0);
        System.out.println("当前账户余额：" + account.getBalance());
        
        // 测试取款功能
        System.out.println("\n===== 尝试取款 500 元 =====");
        try {
            account.withdraw(500.0);
        } catch (InsufficientFundsException e) {
            System.out.println("错误：" + e.getMessage());
            System.out.println("当前余额：" + e.getBalance());
        }
        
        System.out.println("\n===== 尝试取款 700 元 =====");
        try {
            account.withdraw(700.0);
        } catch (InsufficientFundsException e) {
            System.out.println("错误：" + e.getMessage());
            System.out.println("当前余额：" + e.getBalance());
        }
    }
}