大名鼎鼎的java动态脚本语言。已经通过了sun的认证

				class PlusEqualsTest extends GroovyTestCase {								    void testIntegerPlusEquals() {				        def x = 1				        def y = 2				        x += y				        				        assert x == 3				        				        y += 10				        				        assert y == 12				    }								    void testCharacterPlusEquals() {				        Character x = 1				        Character y = 2				        x += y				        				        assert x == 3				        				        y += 10				        				        assert y == 12				    }				    				    void testNumberPlusEquals() {				        def x = 1.2				        def y = 2				        x += y				        				        assert x == 3.2				        				        y += 10.1				        				        assert y == 12.1				    }				    				    void testStringPlusEquals() {				        def x = "bbc"				        def y = 2				        x += y				        				        assert x == "bbc2"				        				        def foo = "nice cheese"				        foo += " gromit"				        				        assert foo == "nice cheese gromit"				    }				}