Java vs C++ (7)导入时间:2023-03-09 04:56:47 用法 import VS include Java import java.util.regex.Pattern; package com.slim; (1)假设少了; 会warning: C++ #include <iostream> if add ; after >, warning: extra tokens at end of #include directive [enabled by default] (2)JAVA存在包的概念,在相同包内不需要import.