SOURCE

//call

person={
    name: function(){
        return this.name
        }
}

zhu={
    name:'fei'
}

person.name.call(zhu)

//call 带参数 

ren={
    name: function(city){
        return this.name + city
        }
}

long={
    name:'fei',
    
}

ren.name.call(long,'zhuhai')

//apply 带参数 

people={
    name: function(city,school){
        return this.name + city + school
        }
}

longtiao={
    name:'fei',
    
}

people.name.apply(longtiao,['zhuhai','10xiao'])