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<html><head><meta charset="UTF-8"><title></title></head><script>/*职责链模式 所有对象依次处理请求，1不能处理传给2，2不能处理传给3....*//*场景 打折 100以下不打折， 100-200 9折 200-400 8折*//*好处 处理对象分离，降低耦合度*/function hander(number){var secHd = new handle9Discount();var thirHd = new handle8Discount(thirHd);var hd= new handleDisCount(secHd).disPrice(number);}function handleDisCount(nextHander) {var me = this;this.nextHander = nextHander;this.disPrice = function(number) {if (number < 100) {alert("已处理,原件出售:" + number);} else {me.nextHander.disPrice(number);}}}function handle9Discount(nextHander) {var me = this;this.disPrice = function(number) {if (100 < number && number < 200) {alert("已处理9折销售" + (number * 0.9))} else {me.nextHander.disPrice(number);}}}function handle8Discount(nextHander) {var me = this;this.disPrice = function(number) {if (200 < number && number < 400) {alert("已处理8折销售" + (number * 0.8))} else {alert("无法处理！");}}}hander(199);</script><body></body></html>
