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17 lines
449 B
17 lines
449 B
import java.util.ArrayList;
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import java.util.List;
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public class HistoryCommand {
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// 存储所有输入过的命令
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private final List<String> commandHistory = new ArrayList<>();
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// 添加命令
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public void addCommand(String cmd) {
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commandHistory.add(cmd);
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}
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// 获取全部历史
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public List<String> getHistory() {
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return new ArrayList<>(commandHistory); // 防御性拷贝,避免外部修改
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}
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}
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