Learn how to use statements like if, if-else, switch, for, and while to declare variables and specify expressions, make decisions, iterate over statements, and more.

for switch-case if-else if for-each while nested-if-else-statements do-while-loop Updated on Dec 4, 2022 Java ...

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Imagine you are a calculator 🔢🔣 throughout the post. Come on there is no loss in imagining this. In fact, it will help you understand conditional statements python if-else-elif and will also enable ...

最后一个else语句没有与if（j <20）相对应，因为它们不在同一个块（尽管if（j <20）语句是没有与else配对最近的if语句）。 最后一个else语句对应着if（i==10）。