如何在Typescript中将接口属性定义为字典？

interface Dictionary<T> {
  [key: string]: T;
}

interface StringDictionary {
  [key: string]: string;
}

const myDict: StringDictionary = {
  key1: "value1",
  key2: "value2",
  key3: "value3"
};

interface NumberDictionary {
  [key: string]: number;
}

const myNumbers: NumberDictionary = {
  one: 1,
  two: 2,
  three: 3
};

function printDictionary<T>(dict: Dictionary<T>) {
  for (const key in dict) {
    console.log(`${key}: ${dict[key]}`);
  }
}

const mixedDict: Dictionary<any> = {
  name: "Alice",
  age: 30,
  isStudent: false
};

printDictionary(mixedDict);