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This article mainly explains "the priority order of VBS regular expression operators". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow Xiaobian's train of thought to study and learn "the priority order of VBS regular expression operators".

Priority order

After the regular expression is constructed, it can be evaluated like a mathematical expression, that is, it can be evaluated from left to right and in a priority order.

The following table lists the priority order of the various regular expression operators from the highest priority to the lowest priority:

Operator description\ escape character (), (?:), (? =), [] parentheses and square brackets *, +,?, {n}, {n,}, {n anymetacharacter m} qualifier ^, $,\ position and order | OR operation

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