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13 lines
314 B
13 lines
314 B
public class USBTest {
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public static void main(String[] args) {
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Computer computer = new Computer();
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// 1. 插入鼠标
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USB mouse = new Mouse();
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computer.useUSB(mouse);
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// 2. 插入键盘
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USB keyboard = new Keyboard();
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computer.useUSB(keyboard);
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}
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}
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