复习javascript--(2)--常用语法

本文主要是对javascript常用的语法进行笔记

1.JavaScript 对象

javascript中的对象主要是对对象的封装简介，对应着python中的字典

<p id="demo"></p>
<script>
var person = {
    firstName : "John",
    lastName  : "Doe",
    age       : 50,
    eyeColor  : "blue"
};
document.getElementById("demo").innerHTML =
    person.firstName + " 现在 " + person.age + " 岁。";

2.对象方法

<p id="demo"></p>
<script>
var person = {
    firstName: "John",
    lastName : "Doe",
    id : 5566,
    fullName : function() 
    {
       return this.firstName + " " + this.lastName;
    }
};
document.getElementById("demo").innerHTML = person.fullName();
</script>

3.函数传递参数

<p>点击这个按钮，来调用带参数的函数。</p>
<button onclick="myFunction('Harry Potter','Wizard')">点击这里</button>
<script>
function myFunction(name,job){
    alert("Welcome " + name + ", the " + job);
}
</script>