python 多个装饰器的调用顺序!

python 多个装饰器的调用顺序

一般情况下，在函数中可以使用一个装饰器，但是有时也会有两个或两个以上的装饰器。多个装饰器装饰的顺序是从里到外(就近原则)，而调用的顺序是从外到里（就远原则）。

原代码

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执行结果

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<input class="pgc-img-caption-ipt" placeholder="图片描述(最多50字)" value="" style="box-sizing: border-box; outline: 0px; color: rgb(102, 102, 102); position: absolute; left: 187.5px; transform: translateX(-50%); padding: 6px 7px; max-width: 100%; width: 375px; text-align: center; cursor: text; font-size: 12px; line-height: 1.5; background-color: rgb(255, 255, 255); background-image: none; border: 0px solid rgb(217, 217, 217); border-radius: 4px; transition: all 0.2s cubic-bezier(0.645, 0.045, 0.355, 1) 0s;"></tt-image>

装饰顺序 : 就近原则

被装饰的函数，组装装饰器时，是从下往上装饰

执行顺序 : 就远原则

装饰器调用时是从上往下调用

为了更好的理解，找到这段话：

被装饰的函数是一个妹子，装饰器是衣服。“办事情”的时候得依次把外套、衬衣、内衣脱掉，事情办完了还要依次把内衣、衬衣、外套穿上。距离“妹子”越近的装饰器代表越贴身的衣服。