如何在swift中将字典、键和值(字符串/数组)映射为一个字符串

let dictionary = ["key1": "value1", "key2": "value2", "key3": ["value3", "value4"]]

let mappedString = dictionary.map { (key, value) -> String in
    if let arrayValue = value as? [String] {
        let arrayString = arrayValue.joined(separator: ", ")
        return "\(key): [\(arrayString)]"
    } else {
        return "\(key): \(value)"
    }
}

let resultString = mappedString.joined(separator: ", ")

print(resultString)

key1: value1, key2: value2, key3: [value3, value4]