如何在JavaScript中继承定义

这期内容当中小编将会给大家带来有关如何在JavaScript中继承定义，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

<script>
functionEnemy(){
this.level=50;
console.log("Enemyconstructor");
}
Enemy.prototype.attack_play=function(){
console.log("attack_play");
};
Enemy.prototype.wudiai=100;
Enemy.wudiai="1213";
Enemy.gongji=function(){
console.log("gongjiasasasd"+Enemy.wudiai);
}
functionBossEnemy(){
Enemy.call(this);
console.log("Bossconstructor");
}
//写法1
//BossEnemy.prototype={constructor:BossEnemy,};
//for(variinEnemy.prototype){
//BossEnemy.prototype[i]=Enemy.prototype[i];
//}
//写法2
vara=function(){};
a.prototype=Enemy.prototype;
BossEnemy.prototype=newa();
BossEnemy.prototype.boss_attack=function(){
console.log("boss_attack");
};
BossEnemy.staticFunc=function(){
console.log("staticFunccalled!");
};
varbos=newBossEnemy();
bos.boss_attack();
bos.attack_play();
BossEnemy.staticFunc();
console.log("==========================");
BossEnemy.prototype.attack_play=function(){
Enemy.prototype.attack_play.call(this);
console.log("BossEnemyattackplay!");
}
bos.attack_play();
console.log("*****************************");
//写法三js6
classBingEnemyextendsEnemy{
constructor(){
super();
this.flag=true;
this.name="通天教主";
this.level=100;
}
staticstaticFunc(){
console.log("staticfunccalled!");
}
getBingName(){
returnthis.name;
}
setBingName(value){
this.name=value;
}
};
BingEnemy.haha="123";
letbing=newBingEnemy();
console.log(bing);
BingEnemy.staticFunc();
bing.attack_play();
console.log(bing.BingName);
bing.BingName="jade";
console.log(bing.BingName);
//console.log(BingEnemy.wudi);
console.log("============================");
</script>

运行结果：

上述就是小编为大家分享的如何在JavaScript中继承定义了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注恰卡编程网行业资讯频道。