This is caused by the fact that the parser uses backtracking to parse the code, i.e. they try many if not all possible combinations of outcomes until they figure out the right one.

这是由于解析器使用回溯来解析代码，例如，它们会尝试诸多结果的组合直到找到正确的那一 个。

youdao

This is caused by the fact that the parser uses backtracking to parse the code, i.e. they try many if not all possible combinations of outcomes until they figure out the right one.

这是由于解析器使用回溯来解析代码，例如，它们会尝试诸多结果的组合直到找到正确的那一 个。

youdao