发现我对Thread和Runable有错误的理解,看过源码后进行区分这两者. 其一:Runable只是一个接口,不会开启一个线程,依旧是运行在UI线程中. public interface Runnable { /** * Starts executing the active part of the class' code. This method is * called when a thread is started that has been created with a class w
疑问:在使用.call()时,调用对象到底是否可以直接拥有了被调用者的方法和属性? 这里输出结果为:ReferenceError: o is not defined function Person(name,age,job){ this.name=name; this.age=age; this.job=job; this.sayName= function() { console.log(this.name); }; return this; } Person.call(o,"nike&quo