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Although the above code can meet the requirements, it is not easy to expand and difficult to read. If I want one or two conditions in the future, if I want to recharge 300 yuan successfully, I can win the 150 yuan red envelope, then I have to change the code inside at this time, so the coupling between business logic and code is relatively high, and I accidentally correct the wrong code. At this time, we try to use the responsibility chain mode to transfer objects in turn to realize it.正是因为张耳才在很快的时间之内落败。42. X.X.244　　十九世纪中叶，两个交情很深的云南人闵家与竺家，一起下南洋做苦工，并在一次瘟疫中先后死去。他们的两个儿子闵寿楠和竺自臻，拿着父辈挣下的血汗钱，在昆明合伙开了一家老滇马店。 　　玉米惊醒，从书中抽出心神，忙问道：小叔要说什么？张杨想了想，才道：你大哥上次派人回去清南村查白凡的事，有些眉目了。虽然原定是不许赎的，但胡钧这次也立了大功。Take Route 6, Route 17, Route 21, Route 22, Route 26, Route 27, Route 33, Route 37, Route 39, Route 201, Route 601, Route 602 to get off the "Jiannan Garden" station.