package com.doumee.ticketmachine; import com.doumee.keyCabinet.utils.i485.SportUtils; import org.junit.Test; import java.util.regex.Matcher; import java.util.regex.Pattern; import static com.doumee.keyCabinet.utils.i485.SportUtils.hexToBinary; public class ExampleUnitTest { @Test public void addition_isCorrect() { String s = "Result:12.00mg/100ml"; Pattern pattern = Pattern.compile("([0-9]+\\.[0-9]+)"); Matcher matcher = pattern.matcher(s); if (matcher.find()) { System.out.println(matcher.group(1)); // 输出: 12.00 } } }