python if嵌套if

Python中的if语句可以进行多层嵌套，也就是if语句内部包含if语句。在Python中，可以使用if、if else和if elif else等组合进行嵌套的编写。在编写代码时，需要根据具体场景选择合适的嵌套方案，并且严格遵守不同级别代码块的缩进规范。这样可以实现根据不同条件的判断来执行不同的代码块。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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