挑战：代码编辑器包含创建棋盘的程序的三个版本。
- 所有三个程序都有相同的结果：它们创建了一个 8 平方 x 8 平方的棋盘！
- 哪个程序效率最低？您认为哪些程序最有效或最易读？
- 看代码。你能确定每个程序如何使行交替颜色吗？
- 玩代码！使用print()帮助计算程序运行时每个变量的值。
To navigate the page using the TAB key, first press ESC to exit the code editor.
挑战：代码编辑器包含创建棋盘的程序的三个版本。
To navigate the page using the TAB key, first press ESC to exit the code editor.
Your micro:bit is not set up for this program. Follow these steps to use your device with Codesters:
Your micro:bit has an old version of the Codesters binary file. Follow these steps to update the file on your micro:bit:
Warning: This will erase any existing program on your micro:bit.
Having trouble? Check out the micro:bit instructions to update your firmware.
Setting up your micro:bit
Calibrate your micro:bit by tilting it until all the LEDs are lit.
For a demonstration see the micro:bit calibration instructions.
Try the following steps to connect to your Micro:bit:
1. You may need to reload this page and try your program again.
2. Try disconnecting and reconnecting your Micro:bit. Then reload the page and run your program again.
3. If you are still having problems your Micro:bit may have an old firmware version that is incompatible with Codesters.
To update the firmware follow these Micro:bit instructions.
Are you already running a Codesters project in another tab or window?
Micro:bit can only connect to one web page at a time. Try stopping other Codesters projects or closing other tabs or windows that may be using your Micro:bit.
If that doesn't fix the problem try disconnecting your Micro:bit, reloading this page, and reconnecting your Micro:bit.
Status: Connected!
Status: Connecting...
Status: Still connecting...
Status: Failure
Status: Not Found
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