#Send SMS verification code
## Specify mobile phone number to get verification code
```javascript
WXAPI.smsValidateCode(mobile, key, picCode)
```
+ mobile mobile phone number
+ key graphical verification code interface, the key used to generate the verification code must be consistent here, otherwise a graphical verification code error will be prompted
+ The content of the graphic verification code displayed by the picCode graphic verification code interface
```json
{
"code": 0,
"msg": "success"
}
```
## Use the current user’s mobile phone number to receive the verification code
```javascript
WXAPI.smsValidateCodeByToken(token)
```
+ token user login credentials
```json
{
"code": 0,
"msg": "success"
}
```
# Check whether the SMS verification code is correct
```javascript
WXAPI.smsValidateCodeCheck(mobile, code)
```
After detection, the verification code will be invalid immediately, please use it with caution
```json
{
"code": 0,
"msg": "success"
}
```