一個電商平臺最核心的就是用戶購買流程，包括用戶權(quán)限、展示、購物車、下單和支付幾個核心部分。而電商里體量更大的部分是為這個主流程服務(wù)的系統(tǒng)，比如運(yùn)營管理系統(tǒng)、CMS內(nèi)容管理、廣告系統(tǒng)、財(cái)務(wù)系統(tǒng)、客服系統(tǒng)以及數(shù)據(jù)統(tǒng)計(jì)系統(tǒng)等等。一個完整的電商系統(tǒng)是相當(dāng)龐大的，這也是為什么我們會把電商稱為一個平臺，而不是一個網(wǎng)站。

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