大名鼎鼎的java动态脚本语言。已经通过了sun的认证

				/**				 * @version $Revision: 1.4 $				 */				class Bytecode6Bug extends GroovyTestCase {								    void testPostFixReturn() {				        def i = 1				        def closure = { i++ }				        def value = closure()				        				        assert value == 1				        assert i == 2				    }				    				    void testPreFixReturn() {				        def i = 1				        def closure = { return ++i }				        def value = closure()				        				        assert value == 2				        assert i == 2				    }				}