Question

我希望名称（条目中的名称）是名为enteredName的变量的指定值。

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    performAction()
    return (true)
}

func performAction() {      
    if let entry = textField.text {
        if entry == "my name is" + //a name {
            var enteredName = //the name
            print ("Your name is " + enteredName + " .")

        }
    }
}

我该怎么做？

Answer 1

您可以执行以下操作：它将检查用户是否使用了正确的格式（＆＃34;我的名字是＆＃34;在开头）并且不区分大小写

import Foundation

let mySentence = "My NaMe IS GioR GioR"

let mySentenceLowercased = mySentence.lowercased()

let myNameOnly = mySentence.dropFirst("my name is ".count)

if let myNameLowercased = mySentenceLowercased.components(separatedBy: "my name is ").last,
    myNameOnly.lowercased() == myNameLowercased {
    print("Your name is " + myNameOnly) // Your name is GioR GioR
} else {
    print("Input format error. The correct format is: \"My name is [your name goes here]\"")
}

如果格式错误，例如

let mySentence = "My NaMe  GioR GioR"

输出将是

//Input format error. The correct format is: "My name is [your name goes here]"

Answer 2

    let defaultText = "my name is"
    let sentence = "My Name IS    Rohit Makwana"
    let lowercaseString = sentence.lowercased()

    if (lowercaseString.range(of: defaultText) != nil) { // If you require default text "my name is"

        let extraName = sentence.dropFirst(defaultText.count)
        let name = extraName.trimmingCharacters(in: .whitespacesAndNewlines)//Remove extra space if it contains

        if name.count > 0 {
            print("Your name is " + name) // Your name is Rohit Makwana
        }
        else {
            print("Input format error. The correct format is: \"My name is [your name goes here]\"")
        }
    }
    else {
        print("Input format error. The correct format is: \"My name is [your name goes here]\"")
    }

如何将整个句子中的单词定义为变量？

2 个答案: