public class Account {
 
	private int balance;
	public int getBalance() {
		return balance;
	}
	public void setBalance(int balance) {
		this.balance = balance;
	}
	public Account(int balance){
	this.setBalance(balance);
	}
	
	public int withDraw(int drawMount){
		if(drawMount<0){
			System.out.println("取款额为负数");
			return 0;
		}
		else if(balance<drawMount){
			System.out.println("余额不足");
		    return 0;
		}else{
			balance=balance-drawMount;
			return drawMount;
		}
	}
}