摘要：
import java.util.ArrayList; import java.util.List; class Phone { private String brand; private double price; public Phone(String brand, double price) { this.brand = brand; ... 阅读全文
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摘要：
import java.util.ArrayList; import java.util.List; class Phone { private String brand; private double price; public Phone(String brand, double price) { this.brand = brand; ... 阅读全文
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