相关疑难解决方法(0)

我正在练习swift,我正在尝试迭代一个字典来打印密钥,但它给了我一个

致命错误:字典文字包含重复的键

如何删除错误？

let people = ["age":14, "age":15, "age":75, "age":43, "age":103, "age":87, "age":12]
for (key, value) in people {
    print(value)
}