因此,当我输入以下内容时,我一直收到此错误:
ALTER TABLE user_follow
ADD FOREIGN KEY (follower,following)
REFERENCES users(idusers)
但是当我将跟随者和以下内容分开时,我没有收到错误
ALTER TABLE user_follow
ADD FOREIGN KEY (follower)
REFERENCES users(idusers)
ALTER TABLE user_follow
ADD FOREIGN KEY (following)
REFERENCES users(idusers)
我这样做是否正确?