python中expected an indented block

在Python中，当使用条件语句（如if、while、for、try-except）时，必须在语句后面加上一个冒号（:），并且在下一行起始位置进行缩进。缩进的代码块表示与条件语句相关的从属关系。如果在条件语句后面没有缩进的代码块，Python解释器会报错并提示"expected an indented block"。这个错误意味着解释器期望在条件语句后面有一个缩进的代码块，用来执行与条件相关的指令。因此，为了解决这个错误，你需要在条件语句后面添加一个缩进的代码块来执行相应的操作。<span class="em">1</span><span class="em">2</span>
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