I run netsh wlan show drivers and get the output containing Hosted network supported : Yes:
netsh wlan show drivers
Hosted network supported : Yes
Interface name: Wireless Network Connectio
Problem solved.
Just drop down status bar, touch Choose input method, then change to another input method, type the password again. And everything is OK.
So weird...
Solution from a Chinese BBS. Thanks for the answer's author and all above who try to provide a solution, thanks!