模版字符串

var name = "dai"
var age = 23
var person = {
    name,
    age,
}
var str1 = "my name is " + person.name  + "\n my age is " + person.age
var str2 = `
my name is ${person.name}
my age is ${person.age}
`
console.log(str1)
console.log(str2)