[英]TypeError: unsupported operand type(s) for &: 'float' and 'float'
I wrote this simple program to calculate one's BMI.我编写了这个简单的程序来计算一个人的 BMI。 But I am unable to execute it complete.
但我无法完全执行它。 Below is my program,
下面是我的程序,
PROGRAM程序
h = input("Please Enter your height in meters:")
q = raw_input("Do you want to enter your weight in kg or lbs?")
if q=="kg":
w1 = input("Please Enter your weight in kgs:")
bmi1 = w1/(h*h)
print "Your BMI is", bmi1
if bmi1 <= 18.5:
print "Your are underweight."
if bmi1 > 18.5 & bmi1 < 24.9:
print "Your weight is normal."
if bmi1 > 25 & bmi1 < 29.9:
print "Your are overweight"
if bmi1 >= 30:
print "Your are obese"
if q=="lbs":
w2 = input("Please Enter your weightin lbs:")
bmi2 = w2/((h*h)*(39.37*39.37)*703)
print "Your BMI is:", bmi2
if bmi2<= 18.5:
print "Your are underweight."
if bmi2>18.5 & bmi2<24.9:
print "Your weight is normal."
if bmi2>25 & bmi2<29.9:
print "Your are overweight"
if bmi2>=30:
print "Your are obese"
OUTPUT输出
Please Enter your height in meters:1.52
Do you want to enter your weight in kg or lbs?kg
Please Enter your weight in kgs:51
Your BMI is 22.074099723
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "bmi.py", line 11, in <module>
if bmi1 > 18.5 & bmi1 < 24.9:
TypeError: unsupported operand type(s) for &: 'float' and 'float'
Where am I going wrong?我哪里错了? Anyone just let me know..
有谁告诉我..
Thanks :).谢谢 :)。
&
is a bitwise operator , I think you were looking for the booleanand
. &
是一个按位运算符,我认为您正在寻找布尔值and
。
But notice that Python also supports the following syntax:但请注意,Python 还支持以下语法:
if 18.5 < bmi1 < 24.9:
# ...
Since you seemed to have trobled with indentation this is how your script might look like:由于您似乎对缩进感到困扰,因此您的脚本可能如下所示:
h = raw_input("Please enter your height in meters: ")
h = float(h)
w_unit = raw_input("Do you want to enter your weight in kg or lbs? ")
w = raw_input("Please enter your weight in {}: ".format(w_unit))
w = int(w)
if w_unit == "kg":
bmi = w / (h*h)
elif w_unit == "lbs":
bmi = w / ((h*h) * (39.37 * 39.37) * 703)
print "Your BMI is {:.2f}".format(bmi)
if bmi <= 18.5:
print "Your are underweight."
elif 18.5 < bmi <= 25:
print "Your weight is normal."
elif 25 < bmi < 30:
print "Your are overweight"
elif bmi >= 30:
print "Your are obese"
There are a couple of slight improvements:有几个小的改进:
input
function behave like raw_input
and there's nothing like the Python 2 input
, it might be a good habit to write your input like that)input
函数的行为类似于raw_input
并且没有像 Python 2 input
那样的东西,这样编写输入可能是一个好习惯)bmi
value, so there's no need to write two times the same thing.bmi
值,所以没有必要写两次相同的东西。 Something left to do, might be wrap the whole script into functions :)剩下要做的事情,可能是将整个脚本包装成函数:)
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