Question

我有一本字典。

var params: [String: [String]] = [:]

我将数组分配给第一个键和第一个键。现在打印参数打印：

["names" : ["jack", "joe", "jill"]]

如何在这个给定的键上遍历这个数组，以便我可以遍历并打印jack，joe和jill？

Answer 1

for (key, names) in params {
    for name in names {
        print("\(name))
    }
}

Answer 2

var params: [String: [String]] = ["names" : ["jack", "joe", "jill"]]
            for key in params.keys {
                NSLog("%@", key)
                let list = params[key]
                for obj in list! {
                    NSLog("%@", obj)
                }
            }

使用元组：

let params: [String: [String]] = ["names" : ["jack", "joe", "jill"]]
        for (key, names) in params {
            print("\(key)")
            for name in names {
                print("\(name)")
            }
        }

如何在Swift中遍历[String：[String]]字典

2 个答案: