小程序java后台代码 微信小程序java后端( 八 )


switch (amount/5)
{
case 0:
discountRate = 0;
break;
case 1:
discountRate = 1;
break;
case 2:
discountRate = 2;
break;
case 3:
discountRate = 3;
break;
default:
discountRate = 4;
} // end switch statement
c=1-discountRate/100;
z=jiage[x]*y*c;
displayJTextArea.append("你选择的是:"+cars[x]+";"+
"它的单价是:"+jiage[x]+";" +"你购买该产品的数量是:"+y+"," +"\n"+"该数量的折扣是:"
+discountRate + " %"+";"+"本次消费的总价格是:"+z+"元"+"!"+"\n");
}
public static void main( String args[] )
{
carshop application = new carshop();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
} // end method main
} // end class carshop
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