Python 3.x 简单的python代码不会将字符串转换为浮点

我试图编写代码来显示一个球从计算中会升到多高 然而，无论我如何键入它，它总是在高度变量上说它“

无法将字符串转换为float

”

time = input("How long did the ball go up? in seconds\n")
time = float(time)

velocity = input("What was the initial velocity?\n")
velocity = float(velocity)

height = ("What was the initial height?\n")
height = float(height)

answer = (time ** 2 * -16) + (velocity * time) + height

print(answer)

ValueError:无法将字符串转换为浮点：“初始高度是多少？\n”

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为什么代码不想转换？

这是因为时间是一个

字符串。您不能更改数据类型，但可以强制转换它。你应该做的是：

time = input("How long did the ball go up? in seconds\n")

velocity = input("What was the initial velocity?\n")

height = input("What was the initial height?\n")

answer = (float(time) ** 2 * -16) + (float(velocity) * float(time)) + float(height)

print(answer)

你错过了
input
阅读
height
。打字：你想要
height=input（“初始高度是多少？\n”）
该死的，我没有看到，谢谢你现在帮我写代码