JS中构造函数与普通函数的区别: https://www.cnblogs.com/cindy79/p/7245566.html
JS构造函数、原型和实例的关系: https://blog.csdn.net/u012443286/article/details/78823955
JavaScript构造函数及原型对象: https://blog.csdn.net/a153375250/article/details/51083245
JS中构造函数与普通函数的区别: https://www.cnblogs.com/cindy79/p/7245566.html
JS构造函数、原型和实例的关系: https://blog.csdn.net/u012443286/article/details/78823955
JavaScript构造函数及原型对象: https://blog.csdn.net/a153375250/article/details/51083245