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Advantages of ModulesAs far as a class is concerned, there should be only one reason for it to change. If a class assumes too many responsibilities, it is tantamount to coupling these responsibilities together. Changes in one responsibility may affect other responsibilities. In addition, coupling multiple responsibilities together will also affect reusability.虽然很长一段时间之内。Secondly, we should improve our concentration and use fixed time, do fixed things and not be disturbed to improve our concentration.夜市小贩魏红偶遇失联多年的前夫李庆祥，本以为李庆祥回心转意，一家人终于可以团圆的她，却在倾其所有，替李庆祥还清债务后，发现前夫李庆祥在外早有妻女。在她孤立无援之际，对魏红暗恋已久的大志出手相助，不但替她挡去所有的麻烦，还给予无微不至的照顾，两人交集日渐增多。这让当年投入大款金光裕怀抱的欧大志的前女友、对其旧情难断的方中玲妒火中烧，联合李庆祥和现任妻子何娜娜等人,不断暗中给魏红制造麻烦。一场突如其来的大火，让魏红一家遭受经济和身心的重创，孤立无援的魏红，与欧大志感情逐渐升温。这彻底激怒了方中玲，她决定利用夜市改造计划对魏红等夜市小贩釜底抽薪，展开毁灭性报复。欧大志带领小贩们奋起反抗，并用法律手段将金光裕、李庆祥等人绳之于法。方中玲和何娜娜也受到了应有的惩罚。就在欧大志兴奋地要拿戒指跟魏红求婚时，途中发生了车祸，让欧大志成为了植物人。魏红不放弃不抛弃，带着欧大志，坚强地迎接即将到来的新生活。