判断源字符串是否由指定的字符串开头或结尾数据类型转换可以将字符串转为其他数据类型Serial115200Serialprintln.startsWithsubstringsubSerialprintln.endsWithsubstringingSerialprintlnLTEint12350dm9pZCBzZXR1cCgpewogIFNlcmlhbC5iZWdpbigxMTUyMDApOwogIFNlcmlhbC5wcmludGxuKFN0cmluZygic3Vic3RyaW5nIikuc3RhcnRzV2l0aCgic3ViIikpOwogIFNlcmlhbC5wcmludGxuKFN0cmluZygic3Vic3RyaW5nIikuZW5kc1dpdGgoImluZyIpKTsKICBTZXJpYWwucHJpbnRsbigoaW50KCIxMjMiKSA8PSA1MCkpOwp9Cgp2b2lkIGxvb3AoKXsKICAvL+WIpOaWrea6kOWtl+espuS4suaYr+WQpueUseaMh+WumueahOWtl+espuS4suW8gOWktOaIlue7k+WwvgogIC8v5pWw5o2u57G75Z6L6L2s5o2i5Y+v5Lul5bCG5a2X56ym5Liy6L2s5Li65YW25LuW5pWw5o2u57G75Z6LCgp9