按照示例代码运行、上传，然后点击编译器的Serial Monitor按钮，就可以看到从代码定义的输入口（这儿是模拟口5）获取的数据了。-Run the example code, upload, and click the compiler s Serial Monitor button, you can see from the definition of the input code (here is the analog port 5) to obtain the data.