## buildin types 
 
| type | desc | 
|------|------| 
| @email | email | 
| @url | url | 
| @ip | ip address | 
| @pwd | common password | 
| @spwd | at least 8 chars with upper case and lower case and number and symbols | 
| @integer | integer | 
| @float | float | 
| @NES | not a empty string | 
| @currency | currency | 
| @dollar | dollar | 
| @cny | cny | 
| @percent | percent | 
| @zip_code_cn | chinese zip code pattern | 
| @id_cn | chinese id pattern | 
| @cn_char | chinese character | 
| @mobile_cn | chinese mobile phone pattern | 
| @mid | mongodb _id |