12.10上课（1）

class BMI:
    def __init__(self,name,age,weight,height):
        self.name = name
        self.age = age
        self.weight = weight
        self.height = height
        self.bmi = self.weight/(self.height*self.height)
        self.bmi = round(self.bmi,2)
    def get_name(self):
        #print(self.name)
        return self.name
    def get_bmi(self):
        #self.bmi = self.weight/(self.height*self.height)
        #round(self.bmi,2)
        return self.bmi
    def get_status(self):
        if self.bmi<18.5:
            self.status = "偏瘦"
        elif self.bmi>24:
            self.status = "偏胖"
        else:
            self.status = "正常"
        return self.status

bmi1 = BMI("zhangsan",18,60,1.7) #实例化

print("{}的BMI是：{},身体状态是：{}".format(bmi1.get_name(),bmi1.get_bmi(),bmi1.get_status()))

zhangsan的BMI是：20.76,身体状态是：正常