python - 不可排序的类型int和字符串

当我运行此命令时，可以输入很好的名称，但是当我输入高度时，会出现无法排序的类型错误。

floatHeight = 0
floatWeight = 0
strName = ""

strName = input("What is your name? ")



while floatHeight <= 1 or floatHeight >= 3:
    floatHeight = input("What is your height in metres? ")
while floatWeight <= 10 or floatWeight >= 400:
    floatWeight = input("What os your weight in kilograms? ")
print(floatWeight)
print(floatHeight)

最佳答案

您需要将输入的值转换为float：

while floatHeight <= 1 or floatHeight >= 3:
    floatHeight = float(input("What is your height in metres? "))
while floatWeight <= 10 or floatWeight >= 400:
    floatWeight = float(input("What os your weight in kilograms? "))

否则floatHeight或floatWeight将是一个字符串。幸运的是，在Python 3中，您无法再比较字符串和浮点数。