Merge branch 'wyl' into 'main'

...diff/client_project/controller/admin/AdminController.java

...lient_project/controller/hospital/HospitalController.java

...n/java/com/cardiff/client_project/mapper/AdminMapper.java

...n/java/com/cardiff/client_project/pojo/vo/SignUserVo.java

...a/com/cardiff/client_project/service/HospitalService.java

...ardiff/client_project/service/imp/HospitalServiceImp.java

src/main/resources/static/html/regist.html