Question

def main():
    get_variables()

def get_variables():
    initial_position = float(input("Enter the object's initial position: "))

    initial_velocity = float(input("Enter the object's initial velocity: "))

    acceleration = float(input("Enter the object's acceleration: "))

    time = float(input("Enter the time that has passed: "))
    if time < 0
        print('The time cannot be negative')
        time = float(input('Enter a valid time: ')

    #formula
    position_of_object = initial_position + initial_velocity * time + 0.5 * acceleration * time ** 2

    #Display Position of object
    print("The position of the object is: ", position_of_object)



    while keep_going == 'y'
        keep_going = input("Do you want to calculate another Object's poistion?" + \
                       'position_of_object (Enter y for yes): ') 

main()

这是我的作业，它说

＆＃34;如果时间＆lt; 0 ^ SyntaxError：语法无效＆＃34;

我对编程几乎一无所知，正在上网。请告诉我哪里错了

Answer 1

您的代码中似乎没有错误：

1：失踪＆＃34;：＆＃34;和＆＃34;）＆＃34;：

    if time < 0
        print('The time cannot be negative')
        time = float(input('Enter a valid time: ')

应改为：

    if time < 0:
        print('The time cannot be negative')
        time = float(input('Enter a valid time: '))

2：失踪＆＃34;：＆＃34;在诡计循环中：

    while keep_going == 'y'
        keep_going = input("Do you want to calculate another Object's 
                      poistion?" + \
                      'position_of_object (Enter y for yes): ')

应改为

    while keep_going == 'y':
              keep_going = input("Do you want to calculate another Object's 
                    poistion?" + \
                   'position_of_object (Enter y for yes): ')

语法无效，if语句。如果时间＆lt; 0

1 个答案: