After the execution of the UPDATE, INSERT, and DELETE statements, an additional variable is available to check the result of the statement.

执行完update、INSERT和delete语句后，将使用额外的一个变量来检查语句的结果。

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For each option, the case statement then attempts to identify the option, using either the short or long format and setting a variable.

对于每个选项，case语句会尝试识别该选项——使用短格式或长格式并设置一个变量。

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To gather user input, you use the read statement and assign a variable to the user input, as shown in Listing 25.

要想收集用户输入，应该使用read语句并向用户输入分配一个变量，见清单25。

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