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macOS 用户： 按下 Command + 空格 打开 Spotlight 搜索 输入 Terminal 或"终端" 按回车键打开 提示：打开终端后你会看到一个黑色（或白色）的窗口，里面有一个闪烁的光标等待你输入命令。 不要怕，它不会因为你输错命令就爆炸 —— 最多给你一个报错信息而已。