这个python程序有什么问题？ （回溯错误）

Question

我的问题是为什么我的程序不能在python 3中运行，它似乎是在＆＃34; Speed = dist / time部分中触发的。非常感谢您的帮助。 如果你也可以纠正它会非常有帮助。

Illegal=[]
Legal=[]
Count = 0
DIST = 0
TIME = 0
SPEED = 0

def CalSpeed():
    global SPEED
    SPEED=DIST/TIME
    return SPEED

print (" Welcome to the Speed check calculator by Awiar Nasseri")
print ("\n")

Count=int(input("How many registration numbers are there?: "))
LIMIT=int(input ("Speed limit (M/S): "))
VAR=int(input ("How many (M/S) should be allowed over the limit?: "))
LIMIT=LIMIT+VAR

while Count > 0:
    Count=Count-1
    REG = input ("Enter Registration number: ")
    TIME =int (input("Enter the time that the vehicle was in the zone in seconds (e.g. 1min= 60)"))
    DIST = input ("Distance inside the zone (M): ")
    SPEED=(DIST/TIME)

    if SPEED>LIMIT:
      Illegal.append(REG)

    elif SPEED<LIMIT:
        Legal.append(REG)

print ("Press P to print illegal and legal cars or press nothing to exit: ")
if option=="P":
    print (Legal[0])
    print (Illegal[0])
print("Thank you for using the program, Goodbye")
sys.exit(0)

这是错误：

Traceback (most recent call last):
  File "\\bhs-students\1515787\Desktop\assess.py", line 26, in <module>
    SPEED=(DIST/TIME)
TypeError: unsupported operand type(s) for /: 'str' and 'int'   

Answer 1

将第26行更改为

DIST = int(input ("Distance inside the zone (M): "))
SPEED=(DIST/float(TIME))

Answer 2

您没有将DIST变量转换为Int，这意味着如果失败，因为它不能将字符串除以int。

Answer 3

正如错误所示，您不能将字符串除以int。您需要将输入转换为数字类型

DIST = float(input("Distance inside the zone (M): "))