1421)文件下载后解压到arduino编译器的libraries文件夹下面。79,80,81,82数字。LOW){UsbKeyboard.sendKeyStroke(KEY_H);UsbKeyboard.sendKeyStroke(KEY_E);UsbKeyboard.sendKeyStroke(KEY_L);UsbKeyboard.sendKeyStroke(KEY_L);UsbKeyboard.sendKeyStroke(KEY_O);UsbKeyboard.sendKeyStroke(KEY_SPACE);UsbKeyboard.sendKeyStroke(KEY_W);UsbKeyboard.sendKeyStroke(KEY_O);UsbKeyboard.sendKeyStroke(KEY_R);UsbKeyboard.sendKeyStroke(KEY_L);UsbKeyboard.sendKeyStroke(KEY_D);UsbKeyboard.sendKeyStroke(KEY_ENTER);}}}注意,先插上Arduino数据线,将程序写入Arduino。