<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <script> function Person(myName, myAge) { this.name=myName; this.age=myAge; } Person.prototype={ constructor:Person, currentType:"ren", say:function() { console.log("666"); } }; let obj = new Person("lnj", 34); console.log(obj.currentType); console.log(obj.__proto__.currentType); obj.currentType="新设置的值"; console.log(obj.currentType); console.log(obj.__proto__.currentType); </script> </body> </html>
JS中属性注意点
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