it-console/code/ts/后端辅助工具/src/main.ts

const greetings = "Hello, World!";

// console.log( greetings );

enum Season
{
    spring = 1,
    summer,
    autumn,
    winter,
};

const ar: string[] = [
    "1", "2",
];

const ar2: (string | number)[] = [
    1, 2, 3, "4",
];

const ar3: readonly (string | number)[] = [1, 2, 3, 4, 5, "7",];

const today = Season.spring;

function ts(): string
{
    const message = "message";

    return message;
}

ts();

console.log(today);