串口发送方式改为no上传下列程序，观察串口数据的输入与输出时间差是多少Serial9600Seriallocal_variate时间unsigned longmillisSerialprintlnSerialSerialprintlnMINUS1millis1时间dm9pZCBzZXR1cCgpewogIFNlcmlhbC5iZWdpbig5NjAwKTsKfQoKdm9pZCBsb29wKCl7CiAgLy/kuLLlj6Plj5HpgIHmlrnlvI/mlLnkuLpubwogIC8v5LiK5Lyg5LiL5YiX56iL5bqP77yM6KeC5a+f5Liy5Y+j5pWw5o2u55qE6L6T5YWl5LiO6L6T5Ye65pe26Ze05beu5piv5aSa5bCRCgogIGlmIChTZXJpYWwuYXZhaWxhYmxlKCkgPiAwKSB7CiAgICB1bnNpZ25lZCBsb25nIF9FNl85N19CNl9FOV85N19CNCA9IG1pbGxpcygpOwogICAgU2VyaWFsLnByaW50bG4oU2VyaWFsLnJlYWRTdHJpbmcoKSk7CiAgICBTZXJpYWwucHJpbnRsbigobWlsbGlzKCkgLSBfRTZfOTdfQjZfRTlfOTdfQjQpKTsKCiAgfQoKfQ==