第4步：在这个活动中，我们将添加一个文本对象。 默认情况下，它的名字是 sprite ，和我们的主角一样。
代码上方的灰色文本称为注释。计算机不读取注释。注释只描述代码。
To navigate the page using the TAB key, first press ESC to exit the code editor.
Set up your micro:bit
Your micro:bit is not set up for this program. Follow these steps to use your device with Codesters:
3
Upload the hex file to your micro:bit
Warning: This will erase any existing program on your micro:bit.
4
Calibrate your micro:bit compass by tilting it until all of the LEDs are lit
5
Click here to exit and restart your program
Having trouble? Check out the micro:bit instructions to update your firmware.
Setting up your micro:bit
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Calibrate the Compass
Calibrate your micro:bit by tilting it until all the LEDs are lit.
For a demonstration see the micro:bit calibration instructions.
