Addition and improvement of functions
1. Improved the error of not being able to read and write the property number last time;
2. Added the function that non-members cannot view the contact method of the homeowner;
3. Added functions that cannot be published by non-members;
4. Improved functions such as member center information;
5. Added a better function: changing the color of browsed information;
6. Added the functions of replying and deleting messages.
