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 ClosureReturnWithoutReturnStatementTest extends GroovyTestCase {
				
				    void testReturnValues() {
				        def block = {x-> x > 5}
				
				        def value = block.call(10)
				        assert value
				
				        value = block.call(3)
				        assert value == false
				    }
				
				    void testReturnValueUsingFunction() {
				        def block = {x-> someFunction(x) }
				        
				        def value = block.call(10)
				        assert value
				
				        value = block.call(3)
				        assert value == false
				    }
				    
				    def someFunction(x) {
				        x > 5
				    }
				}