格式化输出
System.out.println("********消费单********\n"
+ "购买物品\t单价\t个数\t金额\n"
+ "T恤\t¥"+shirtPrice+"\t"+shirtNo+"\t¥"+shirtPrice*shirtNo
+ "\n网球鞋\t¥"+shoePrice+"\t"+shoeNo+"\t¥"+shoePrice*shoeNo
+ "\n网球拍 \t¥"+padPrice+"\t"+padNo+"\t¥"+padPrice*padNo
+ "\n\n折扣:\t"+discount*10+"折\n"
+ "消费总金额:\t¥"+finalPay
+ "\n实际交费:\t¥"+realPay
+ "\n找钱\t¥"+pocketMoney
+ "\n本次购物所获得的积分是:\t"+integral+"\n");
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