SOURCE

// for (var i =0;i < 3;i++) {
//     setTimeout(() => {
//         console.log(i);
//     },i * 100);
// }

let age = 22;
let obj = {
    age: 18,
    say: () => {
        console.log(this.age);
    },
}
obj.say()

// 倒三角

console.log(1)
const p = new Promise((resolve) => {
    console.log(2);
    resolve();
})
console.log(3)
setTimeout(() => {
    console.log(4)
}, 0)
p.then(() => {
    console.log(5);
})
setTimeout(() => {
    console.log(6);
}, 0)
console.log(7)

let a = 1;
function test() {
    function scope() {
        let b = 2;
        c = 3;
    }
    let c = 4;
    scope();
    let b;
    console.log(a, b, c);
}
test()