字符串拼接字符串拼接程序块可以拼接不同数据类型的数据组成一个字符串，就像冰糖葫芦一样Serial115200SerialprintlnHellohelloMixlyaSerialprintlnA0Cdm9pZCBzZXR1cCgpewogIFNlcmlhbC5iZWdpbigxMTUyMDApOwogIFNlcmlhbC5wcmludGxuKFN0cmluZygiaGVsbG8iKSArIFN0cmluZygnYScpKTsKICBTZXJpYWwucHJpbnRsbihTdHJpbmcoIkEiKSArIFN0cmluZygwKSArIFN0cmluZygiQyIpKTsKfQoKdm9pZCBsb29wKCl7CiAgLy/lrZfnrKbkuLLmi7zmjqUKICAvL+Wtl+espuS4suaLvOaOpeeoi+W6j+Wdl+WPr+S7peaLvOaOpeS4jeWQjOaVsOaNruexu+Wei+eahOaVsOaNrue7hOaIkOS4gOS4quWtl+espuS4su+8jOWwseWDj+WGsOezluiRq+iKpuS4gOagtwoKfQ==