当前位置：网站首页>js的对象操作（与c的对象比较简单的多）

js的对象操作（与c的对象比较简单的多）

2022-06-21 19:44:00 【刘家奕_】

1.一般

（1）js的对象操作（与c的对象比较简单的多）

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      var obj = new Object();
      obj.name = "liujiayi";
      obj.age = "18";
      obj.sex = "boy";
      //   console.log(obj.name);
      console.log(obj);
    </script>
  </body>
</html>

读取：

（2）

也可以用 var obj = {};更加简单

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      // var obj = new Object();
      var obj = {};
      obj.name = "liujiayi";
      obj.age = "18";
      obj["123"] = "boy";
      console.log(obj["123"]);
      //   console.log(obj);
    </script>
  </body>
</html>

或者写在括号里面

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      // var obj = new Object();
      var obj = {
        name: "liujiayi",
        age: "18",
      };
      console.log(obj.name);
      //   console.log(obj);
    </script>
  </body>
</html>

2.特殊

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      var obj = new Object();
      obj.name = "liujiayi";
      obj.age = "18";
      obj["123"] = "boy";
      console.log(obj["123"]);
      //   console.log(obj);
    </script>
  </body>
</html>