class tortoise:
    bodyColor = "绿色"
    footNum = 4
    weight = 10
    hasShell = True

    # 会爬
    def crawl(self):
        print("乌龟会爬")

    # 会吃东西
    def eat(self):
        print("乌龟吃东西")

    # 会睡觉
    def sleep(self):
        print("乌龟在睡觉")

    # 会缩到壳里
    def protect(self):
        print("乌龟缩进了壳里")
