Rewrite is an optimization strategy that transforms a valid query into a semantically equivalent form that can be more efficient to execute.
重写是一种优化策略,它将一个有效的查询转化成语义上相等的一种新形式,这种新的形式执行起来更为高效。
Using this technique, you could execute custom validation logic before allowing the form to be submitted, or you could trigger a custom event after the form is submitted.
使用这种技术,您可以在允许提交表单之前执行定制验证逻辑,或者在表单提交之后触发一个定制事件。
The above "elif" form will consecutively test each condition and execute the action corresponding to the first true condition.
以上“ elif ”形式将连续测试每个条件,并执行符合第一个真条件的操作。
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