Groovy动态语言 运行在JVM中的动态语言 可以方便的处理业务逻辑变化大的业务

				class LocalPropertyTest extends GroovyTestCase {
				
				    def x
				    
					void testNormalPropertyAccess() {
					    x = "abc"
					    
					    assert x == "abc"
				        assert x != "def"
					}
					
					void testPropertyWithThis() {
				        this.x = "abc"
					    
					    assert this.x == "abc"
					    assert this.x != "def"
					}
				}