Has Zheng Yuan ever written songs for others?

Crazy for Love is a song written for Phoenix Legend. He later changed a few words, sang it again, and named it Crying for Someone

My Love If a woman has changed her heart, why not let her go early? You were written for Zheng Dong, his brother

There are many more

Zheng Yuan’s own songs: Why can’t people in love be together? Together, I dreamed of a lover who didn’t want to have a lover and finally got married, a sad diary, etc. were all written by him himself