c++ - codeblocks编译出现：跟着更多为定义的参考到...

Question

如图

这些库我明明都安装了的，请问怎么解决？

Answer 1

Compilation error, set the linked directories and files.

Answer 2

This is a link error. You should know this when you see error:ld returned 1 exit status. The situation is that the compiler knows your function declaration but cannot find the implementation. Generally speaking, it is

• You really didn’t realize it

• You did not link the corresponding library

For IDE, the link library needs to be specified in the project configuration. .