Overriding A Function

I know there is an easy way to override template files, but is there a way to override a function, method of class? If not changing plugin files themselves, then how?

E.g. get_price_html() from woocommerce\includes\class-wc-product-variable.php

Did anybody do that?..

https://ww.wp.xz.cn/plugins/woocommerce/