How Do I Solve: [ValueError: invalid literal for int() with base 10:]

Question

    command= " "
    while True:
        command = int(input("how old are you? "))
        if command <= 12:
            print("you're ticket is free.")
        elif command <= 15:
            print("you're ticket is .")
        elif command > 15:
            print("you're ticket is .")
        elif command == "exit":
            break

当我写 exit 它给出了 ValueError,

ValueError: invalid literal for int() with base 10:'exit'

Answer 1

在尝试将命令转换为 int 之前，您应该检查命令是否已退出：

while True:
    command = input("how old are you? ")
    if command == "exit":
        break
    command = int(command)
    if command <= 12:
        print("you're ticket is free.")
    elif command <= 15:
        print("you're ticket is .")
    elif command > 15:
        print("you're ticket is .")

How Do I Solve: [ValueError: invalid literal for int() with base 10:]

How Do I Solve: [ValueError: invalid literal for int() with base 10:]

valueerror

python-3.9