墨乌果是乌墨树长的果实,它也叫羊屎果,因为果实长得像羊屎而得名,也叫十年果、麻栗、乌墨果、野冬青果,是桃金娘科植物乌墨的果实,在福建、广东、海南、云南等地有种植,果实未成熟的时候是黄色的,成熟以后是黑
I need to check if a param has got a value in it and if it has then do this line otherwise do this line.