如何在Testng XML中区分不同测试的优先级

<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="Test Suite">
  <test name="Test Case">
    <classes>
      <class name="com.example.TestClass">
        <methods>
          <include name="testMethod1" priority="1" />
          <include name="testMethod2" priority="2" />
          <include name="testMethod3" priority="3" />
        </methods>
      </class>
    </classes>
  </test>
</suite>