Swift 斯威夫特跳过了一句话；否则，如果；

这个Swift（Xcode）

ChatBot

程序正确地返回“hello there”和“cookies在哪里？”字符串。但是对于中间的两个，返回值“可能是任何东西”，应该是“向北！”。我认为这是一个断点或是多行上有字符串的问题，但这在Xcode workplace和Playerd中都会发生：

struct MyQuestionAnswerer {
    func responseTo(question: String) -> String {

        let question = question.lowercased()

        let defaultNumber = question.count % 3

        if question == "hello there" {
            return "Why hello there"
        } else if question == "where should I go on holiday?" {
            return "To the North!"
        } else if question == "where can I find the north pole?" {
            return "To the North!"
        } else if question == "where are the cookies?" {
            return "In the cookie jar!"
        } else if defaultNumber == 0 {
            return "That really depends"
        } else if defaultNumber == 1 {
            return "Ask me again tomorrow"
        } else {
            return "Could be anything"
        }
    }
}

---

您的问题是使用.lowercased（）-比较两个字符串是否都是.lowercased（） 此外，如果您使用案例陈述，我会觉得这个问题更好：见下文

struct MyQuestionAnswerer {
    func responseTo(question: String) -> String {

        let localQuestion = question.lowercased()
        question == String("where can I find the north pole?").lowercased()
        let defaultNumber = question.count % 3

        switch localQuestion {
        case String("hello there").lowercased() : return "Why hello there"
        case String("where should I go on holiday?").lowercased() : return "To the North!"
        case String("where can I find the north pole?").lowercased() : return "To the North!"
        case String("where are the cookies?").lowercased() : return "In the cookie jar!"
        default: if (defaultNumber == 0) {return "That really depends" } else {return "Could be anything"}
        }
    }
}

---

您的问题是使用.lowercased（）-比较两个字符串是否都是.lowercased（） 此外，如果您使用案例陈述，我会觉得这个问题更好：见下文

struct MyQuestionAnswerer {
    func responseTo(question: String) -> String {

        let localQuestion = question.lowercased()
        question == String("where can I find the north pole?").lowercased()
        let defaultNumber = question.count % 3

        switch localQuestion {
        case String("hello there").lowercased() : return "Why hello there"
        case String("where should I go on holiday?").lowercased() : return "To the North!"
        case String("where can I find the north pole?").lowercased() : return "To the North!"
        case String("where are the cookies?").lowercased() : return "In the cookie jar!"
        default: if (defaultNumber == 0) {return "That really depends" } else {return "Could be anything"}
        }
    }
}

---

请阅读我在代码块中添加的注释

struct MyQuestionAnswerer {
func responseTo(question: String) -> String {

    let question = question.lowercased()  // <- Converts all the strings in your question into lower case

    let defaultNumber = question.count % 3

    if question == "hello there" {
        return "Why hello there"
    } else if question == "where should I go on holiday?" {  // <- I is upper case
        return "To the North!"
    } else if question == "where can I find the north pole?" {  // <- I is upper case
        return "To the North!"
    } else if question == "where are the cookies?" {
        return "In the cookie jar!"
    } else if defaultNumber == 0 {
        return "That really depends"
    } else if defaultNumber == 1 {
        return "Ask me again tomorrow"
    } else {
        return "Could be anything"
    }
}

struct MyQuestionAnswer{
func responseTo（问题：String）->String{
让question=question.lowercased（）/请阅读我在代码块中添加的注释

struct MyQuestionAnswerer {
func responseTo(question: String) -> String {

    let question = question.lowercased()  // <- Converts all the strings in your question into lower case

    let defaultNumber = question.count % 3

    if question == "hello there" {
        return "Why hello there"
    } else if question == "where should I go on holiday?" {  // <- I is upper case
        return "To the North!"
    } else if question == "where can I find the north pole?" {  // <- I is upper case
        return "To the North!"
    } else if question == "where are the cookies?" {
        return "In the cookie jar!"
    } else if defaultNumber == 0 {
        return "That really depends"
    } else if defaultNumber == 1 {
        return "Ask me again tomorrow"
    } else {
        return "Could be anything"
    }
}

struct MyQuestionAnswer{
func responseTo（问题：String）->String{
let question=question.lowercased（）//谢谢！呸，我需要一些新鲜的眼睛来捕捉。谢谢！呸，我需要一些新鲜的眼睛来捕捉。谢谢你的建议！谢谢你的建议！