lovecoding
/
Web1020


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      // () [] {}
      var obj = {};
      // 向对象内添加属性 obj.xxx(属性名) = aaa（属性值）
      obj.name = "小红";
      obj.age = 90;
      obj.sex = "女";
      console.log(obj);
      console.log(typeof obj);
      var obj1 = {
        name: "孙悟空",
        desc: "他是齐天大圣",
      };
      // 读取对象中的属性值 obj.xxx(属性名)
      console.log(obj1);
      console.log("他叫:" + obj1.name);
      var obj2 = new Object({
        age: 30,
      });
      obj2.name = "八戒";
      console.log(obj2);
      var newList = [
        {
          name: "Tom",
          address: "北京",
          age: 19,
        },
        {
          name: "Lucy",
          address: "重庆",
          age: 21,
        },
        {
          name: "Jack",
          address: "江苏",
          age: 29,
        },
        {
          name: "Jerry",
          address: "哈尔滨",
          age: 17,
        },
      ];
      for (var i = 0; i < newList.length; i++) {
        document.write(newList[i].name + "\f");
      }
      var obj3 = {
        name: "哪吒",
        age: 7,
        list:[1,2,3,4],
        skill: "火力全开",
        desc: function () {
          console.log("我是一个男孩");
        },
        sum: function (a, b) {
          return "和:" +( a + b)
        },
      };
      obj3.desc();
      console.log(obj3.list[2])
      console.log(obj3.sum(2,3));
      console.log(obj3["sum"](4,4))
    </script>
  </body>
</html>