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                            # 閉包的變形
```javascript
/*   
function fun(){
var a = 10;
var b = 20;
return {
    getA: function(){
        return a;
    },
    getB:function(){
        return b;
    }
}
}
var fun = fun();
var a = fun.getA();
var b = fun.getB();
console.log(a,b);
*/

// 寫法二
/*
function fun(){
var a = 10;
var b = 20;
function getA(){
        return a;
    }
    function getB(){
        return b;
    }
return {
    getA:getA,
    getB:getB
}
}
var fun = fun();
var a = fun.getA();
var b = fun.getB();
console.log(a,b);
*/

// 自執行函數  （）（）；
var modal = (
    function fun(){
var a = 10;
var b = 20;
function getA(){
        return a;
    }
    function getB(){
        return b;
    }
return {
    getA:getA,
    getB:getB
}
}

)();

var a = modal.getA();
var b = modal.getB();
console.log(a,b);

```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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