摘要:
public class Fruit { public void get () { System.out.println("水果"); } public class Apple extends Fruit { public void get() { System.out.println("苹果"); 阅读全文
posted @ 2022-12-16 17:40
lm9856
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摘要:
import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Scanner; public cla 阅读全文
posted @ 2022-12-16 17:09
lm9856
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