//查看js的引入路径是否正确

console.log("1:",1)

var a=1;

let b=2;

console.log("a:",a)

console.log("b:",b)

if(true)

{

    var a=1;

    let b=2;

}

console.log("a:",a)

console.log("b:",b)

if(1)

{

    let b=2;

    console.log("b:",b)

}

console.log("b:",b)

for(let i=0;i<3;i++)

{

    console.log("i:",i)

}

console.log("i:",i)

var a=1;

function foo() {

    if(false)

    {

        var a=1;

    }

    console.log("a:",a)

}

foo();

console.log("a:",a)

console.log("a:",a)

var a;

console.log("a:",a)

let a;

const love_you=true;

love_you=false;

const love_you;

let user={name:'王花花',age:10}

const Love_you=user;

console.log(Love_you)

let user={name:'王花花',age:10}

const Love_you=user;

console.log(Love_you)

love_you=1;

let user={name:'王花花',age:10}

const Love_you=user;

console.log(Love_you)

user.age=12;

console.log(Love_you)

let user={name:'王花花',age:10}

const Love_you=user;

console.log(Love_you)

Love_you={};

console.log(Love_you)

var user={name:'王花花',age:10}

const Love_you=user;

console.log(Love_you)