模板字符串
let info = "我是" + "?" + "今年技术";
<script>
let name = "张开";
let age = 73;
let info = `我叫${name},今年${age}岁`;
</script>
let info = "我是" + "?" + "今年技术";
<script>
let name = "张开";
let age = 73;
let info = `我叫${name},今年${age}岁`;
</script>