Hi, Judy Zhang1
Welcome to Microsoft Community.
I have deleted your reply as it contains personal and private information.
Regarding your problem, I suggest you try the solution I provided first and if the problem persists, you can try again:
Settings→Time and Language→Language AreaPreferred language under the Chinese (Simplified, China) three dots to the right, click, and then click on the "Language Options", the bottom of the "Microsoft Pinyin", three dots to the right, click, and then click on the Keyboard Options, click on General Click on "Compatibility" at the bottom.
If the input method still doesn't work, you can post a new thread in the Microsoft community (please be careful to protect your private information), and there will be a support specialist there to help you.
I hope that your issue will be handled properly and eventually resolved, and I wish you all the best!
Sincerely
Nicholas | Microsoft Community Support Specialist