Question

我需要以下代码的帮助。

phone = input("What is the make of your Phone? ")

if phone == "Samsung":
         model1 = input("Now can you tell me the model of your phone?")
         if model1 < int(4):
            print ("This model and any older models are not compatible with this system, Sorry for any inconvenience!")

         else:
             print ("Let us move on to the problem")


elif phone == "Apple":
        model2 = input("Now can you tell me the model of your phone?")
        if model1 < 4:
         print("This model and any older models are not compatible with this system, Sorry for any inconvenience!")

        else:
            print("Let us move on to your problem")

你能告诉我如何做到这一点，当你输入少于4的东西时，它会说“模型不兼容”，当它高于4时，它将继续代码。谢谢

当我在

中键入数字时会发生这种情况

What is the make of your Phone? Samsung
Now can you tell me the model of your phone?3
Traceback (most recent call last):
  File "\\shs-homes01\011275$\GCSE Computing\MY TroubleShooting code.py", line 9, in <module>
    if model1 < int(4):
TypeError: unorderable types: str() < int()

Answer 1

问题是你没有将model1转换为int，它是一个字符串，你不能将int与string进行比较。试试这个：

if int(model1)<4

如果是你的

，那么下一个其他地方也是如此

Answer 2

尝试更改

if int(model1) < 4:

到

    public logIn() {
        let phone = this.user.number.replace(/\s+/g, '');
        let email = 'u' + phone + '@lunch24.com';
        this.af.auth.login({email: email, password: this.user.password})
            .then((state) => {
                console.log(state)
                var usersRef = firebase.database().ref('v1/users');
                this.af.database.object(usersRef.child(state.uid))
                    .subscribe((snapshot) => {
                        console.log(snapshot)
                        var user = snapshot;
                        if (user.roles.driver != true) {
                            if (user.roles.admin) {
                                var admin = 1;
                            } else {
                                var admin = 0;
                            }
                            if (user.roles.operator) {
                                var operator = 1;
                            } else {
                                var operator = 0;
                            }
                            if (user.roles.individual_customer) {
                                var individual_customer = 1;
                            } else {
                                var individual_customer = 0;
                            }

你也需要尝试异常处理。

如果和其他功能

2 个答案: