__proto__、prototype、constructor 之间的关系
引用 李松峰 老师的PPT
1 var Person = function(living, age, gender) { 2 this.living = living; 3 this.age = age; 4 this.gender = gender; 5 }; 6 7 Person.prototype.getGender = function(){ 8 return this.gender; 9 }; 10 11 var child = new Person(true, 25, 'male'); 12 13 console.log (child.getGender()); // male 14 console.log (child.__proto__ === Person.prototype);//true 15 console.log (child.constructor === Person);//true
