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Hello, everyone. I'm your good friend - Xiaofeng^ Introduction to Aviator Aviator is a high-performance and lightweight expression evaluation engine implemented in java language, which is mainly used for dynamic evaluation of various expressions. Now there are many open source java expression evaluation engines available. Why do you ...

This paper introduces some common uses of writing regular expressions in JavaScript. 1. match() match() is used with a string to check the match between the string and the regular expression ， regex ， with the regular expression as an argument. grammar: str.match(regex); Method returns three possible values: If the regular expression ...

How to convert a reference table in GB7714-2015 format into a bib file background Using references in latex is an automated work, but establishing and maintaining bib files is actually a long-term accumulation activity. bibtex data of some references exist, for example, they can be downloaded from various academic websites. But some websites ...

preface Condition variable is a mechanism for synchronization by using global variables shared among threads. It mainly includes two actions: a thread waits for "the condition of condition variable is established" and hangs; Another thread makes the "condition true" (gives the condition true signal). To prevent contention, ...