[Python知识库]Python练习题 01

作业1：用条件语句写一个BMI（体重除以身高的平方）指数

• 用条件语句写一个BMI（体重除以身高的平方）指数
• 低于18.5：过轻
• 18.5 - 25 正常
• 25 - 28 过重
• 28 - 32 肥胖
• 高于32 严重肥胖

 
weight = input("请输入体重：")
height = input("请输入身高：")
BMI = float(float(weight)/(float(height)**2))
#计算bmi的公式
if BMI<= 18.5:
 	 print("弱不禁风",BMI)
elif BMI<=25:
     print("继续保持",BMI)
elif BMI<=28:
    print("男生最喜欢的女孩的身材",BMI)
elif BMI<=32:
else:
    print("珍爱生命，控制食欲，多运动，多撩妹")

作业2：计算从1到100所有奇数的和

方法1

 def odd1():
     sum = 0
     for i in range(0,101,2):
         # print(i)
         sum = sum + i
     print("从1到100所有奇数的和为:",sum)
 if __name__ == '__main__':
     odd1()

方法2

 def odd2():
     sum = 0
     for i in range(0,101):
         if i % 2 !=0:
             sum = sum+i
     print("从1到100所有奇数的和为:", sum)
 if __name__ == '__main__':
     odd2()

作业3：计算从1到100所有偶数的和

方法1

 def even1():
     sum = 0
     for i in range(1, 101, 2):
         # print(i)
         sum = sum + i
     print("从1到100所有偶数的和为:",sum)
 if __name__ == '__main__':
     even1()

方法2

 def even2():
     sum = 0
     for i in range(1,101):
         if i % 2 == 0:
             print(i)
             sum = sum + i
     print("从1到100所有偶数的和为:",sum)
 if __name__ == '__main__':
     even2()

作业4：用while计算1到100的乘积

 def Product():
     product = 1
     num = 1
     while num <= 100:
         product = num * product
         num = num + 1
     print("1到100的乘积",product)
 if __name__ == '__main__':
     Product()