题目：
Dogs mature at a faster rate than human beings. We often say a dog’s age can be calculated in “dog years” to account for their growth compared to a human of the same age. In some ways we could say, time moves quickly for dogs — 8 years in a human’s life equates to 45 years in a dog’s life. How old would you be if you were a dog?
Here’s how you convert your age from “human years” to “dog years”:
The first two years of a dog’s life count as 10.5 dog years each.
Each year following equates to 4 dog years.
Before you start doing the math in your head, let a computer take care of it! With your knowledge of math operators and variables, use JavaScript to convert your human age into dog years.
代码：
const myAge = 5; //my age
let earlyYears = 2;
earlyYears *= 10.5;
let laterYears = myAge - 2; //we already accounted for the first two years.
laterYears *= 4;
//console.log(earlyYears,laterYears)
let myAgeInDogYears = earlyYears + laterYears;
let myName = "Nbzch";
myName = myName.toLowerCase();
console.log(
`My name is ${myName}.I am ${myAge} years old in human years which is ${myAgeInDogYears} years old in dog years.`
);运行结果：
My name is nbzch.I am 5 years old in human years which is 33 years old in dog years.
