# 1. You can set the reset time to return a fixed-length sequence.
System parameters, you can set the number of hours after which the count will start from 0 by setting `order_sequence_hours`
The returned format is: 2026011017320001
The first 10 digits are the current year, month, day, time and minute, format: `yyMMddHHmm`
The next 4 bits are the counting factor, increasing from 1
```javascript
WXAPI.uniqueId(type)
```
+ type The type of serial number, each type of serial number is counted separately
# 2. Only return the counting factor
It will always increase and will not be cleared to zero. It will return a number directly.
```javascript
WXAPI.sequence(type, defValue)
```
+ type The type of serial number, each type of serial number is counted separately
+ defValue default value, when type does not exist, the initial counting starts with the value