//ES6實現(xiàn)繼承

classPerson {

constructor(name, age) {

this.name= name;

this.age= age;

}

Show() {

return(this.name+' '+this.age);

}

}

classStudentextendsPerson {

constructor(name, age, School) {

super(name, age);

this.School= School;

}

Show() {

return(super.Show() +' '+this.School);

}

}

letme=newStudent("mochen","10","XD");

//ES5繼承

functionjicheng(parent) {

functionF(){};

F.prototype= parent;

return newF();

}

//Promise實例

functionf(par) {

return newPromise((resolve, reject) => {

//異步操作

if(true)//如果判斷條件為true，即異步執(zhí)行成功

{

resolve(參數(shù));

}else{

reject(參數(shù));

}

})

}

letmyPromise=newf(par);

myPromise(par)

.then(()=> {})//此處為異步成功時你要執(zhí)行的函數(shù)

.catch(() => {})//此處為異步失敗你要執(zhí)行的函數(shù)