```javascript
WXAPI.bindEmail(token, email, code, pwd)
```
+ token current user login credentials
+ email The email address that needs to be bound
+ code Email verification code, please call the limited verification code interface to obtain it first
+ pwd Set the email login password. You can use this email and password to log in later. You don’t need to pass it.
```json
{
code: 0,
msg: 'success'
}
```