區(qū)塊內(nèi)研社千倍收益實(shí)操之NFT項(xiàng)目方培訓(xùn)
2022-12-08 21:14 作者:janet19961217 | 我要投稿
class VIPAndCouponStrategy implements DiscountStrategy {
? ?@Override
? ?public double calculate(double value) {
? ? ? ?return value * 0.8 - 100;
? ?}}class NormalStrategy implements DiscountStrategy {
? ?@Override
? ?public double calculate(double val
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