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                                样例使用说明
                             Sample Description
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功能描述：
此样例演示了GPIO输出模式，配置LED引脚为数字输出模式，并且每隔100ms翻转一次LED引
脚电平，运行程序，可以看到LED灯闪烁。

Function descriptions:
This sample demonstrates GPIO output mode by configuring the LED pin as a digital 
output. The LED pin's level is toggled every 100ms, causing the LED to blink. 
Run the program to observe the LED blinking.
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测试环境：
测试用板：PY32F003_STK
MDK版本： 5.28
IAR版本： 9.20
GCC版本： GNU Arm Embedded Toolchain 10.3-2021.10

Test environment:
Test board: PY32F003_STK
MDK Version: 5.28
IAR Version: 9.20
GCC Version: GNU Arm Embedded Toolchain 10.3-2021.10
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使用步骤：
1. 编译下载程序到MCU，并运行；
2. 可观察到STK板上的LED闪烁；

Example execution steps:
1.Compile and download the program to the MCU, and run it.
2.Observe the LED on the STK board blinking.
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注意事项：
如果需要使用按键:
StartKit版本为V2.0以下,需将StartKit.h中的StartKitVersion 2 注释掉，并打开
StartKitVersion 1
StartKit版本为V2.0及以上版本,则无需操作

Notes:
If you need to use buttons:
StartKit version is below V2.0, you need to comment StartKitVersion 2 in
StartKit.h, and open StartKitVersion 1 
StartKit version is V2.0 and above, no operation is required
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