html 转义字符失败，求正确的书写方式

Question

 alert("你好"+" "+"终端号");

Answer 1

字符串不支持&xxx;这种编码，动态创建一个dom对象设置innerHTML后再获取innerHTML

   var s = "你好" + " " + "终端号";
    var lb = document.createElement('label'); lb.innerHTML = s; s = lb.innerHTML;
    alert(s);