if elseif else
时间: 2023-10-17 10:35:57 浏览: 50
if elseif else是一种条件语句结构,用于根据不同的条件执行不同的代码块。if语句用于判断一个条件是否为真,如果为真,执行对应的代码块;如果为假,则执行下一个elseif或else语句。elseif语句用于在前一个条件为假的情况下,判断另一个条件是否为真,如果为真,执行对应的代码块;如果为假,则继续判断下一个elseif或else语句。最后的else语句是可选的,用于当所有前面的条件都为假时,执行对应的代码块。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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