• 請(qǐng)求在鏈上傳遞，直到某個(gè)對(duì)象處理(申請(qǐng)費(fèi)用流程)

    function Handler()
    {
        
        /**
         * 后續(xù)領(lǐng)導(dǎo)
         */
        var _successor;
        
        
        /**
         * 處理請(qǐng)求
         */
        function handleRequest(name,fee)
        {
            
            if(fee<1000)
            {
                if(name == '張三')
                {
                    console.log('可以批準(zhǔn)')
                }
                else
                {
                    console.log('一律拒絕')
                }
            }
            else
            {
                if(_successor)
                {
                    console.log('交給領(lǐng)導(dǎo)處理')
                    _successor.handleRequest()
                }
                else
                {
                    console.log('一律拒絕')
                }
            }
        }
        
        /**
         * 設(shè)置或獲取后續(xù)對(duì)象
         */
        function successor(v)
        {
            if(!v)
            {
                return _successor;
            }
            
            _successor = v;
        }
        
        return{
            
            handleRequest:handleRequest,
            successor:successor
        }
    }
    
    
    
    var handlerA = new Handler();
    
    var handlerB = new Handler();
    
    handlerA.successor(handlerB)
    
    handlerA.handleRequest('張三',800)