疑问

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var msg="今晚308,w84u";for(var i=0,arr=[];i<msg.length;i++){var code=msg.charCodeAt(i);code=(100000+code+"").slice(1);console.log(code.slice(1));arr.push(code);}msg=arr.join(""); //将msg替换成了编码console.log(msg);

var n=1;n = n>1?0 : n++;console.log(n);//1var n=1;if(n>1){    n=0;}else{    n++;}console.log(n);//2

<!DOCTYPE html><html><head><meta charset="utf-8"><title>W3Cschool教程(w3cschool.cn)</title></head><body><p>局部变量计数。</p><button type="button" onclick="myFunction()">计数!</button><p id="demo">0</p><script>function add() {    var counter = 0;    return counter += 1;}function myFunction(){    document.getElementById("demo").innerHTML = add();}</script></body></html>

编写js的类，使其拥有public和private类型的属性和方法

“`
function Person(_name,_age,_sex,_salary){
//public
this.name = _name;
this.age = _age;

//privare  var sex = _sex;  var salary = _salary;  //public method  this.getName = function(){return this.name;}  this.getAge = function(){return this.age;}  //private methd  function getSex(){return sex;}  function getSalary(){return salary;}this.display = function(){document.write(this.getName() + "---" + this.getAge() + "---" + getSex() + "----" + getSalary());}

}
var smirk = new Person(“zy”,”21”,”f”,”5000”);
smirk.display();

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