翻译莫尔斯码，这个Sketch包含一个自动并且不断重复调用函数flashSequence的loop函数，而flashSequence又在不断调用另外一个函数flashDotOrDash，flashDotOrDash又在调用由arduino提供的函数digitalWright和delay。(The translation of the Morse code, the Sketch contains an automatic and repeated call function of flashSe