ulwutils v1.0.2

``` 
    const utils = require('ulwutils');
    //StringHelper 左边自动补0
    const stringHelper= new utils.StringHelper()
    console.log(stringHelper.padLeftZero("1"));
```

       const utils = require('ulwutils');
       //timeFormat
       const timeFormat= new utils.TimeFormat()
       console.log(timeFormat.formateDate(new Date(),"yyyy-MM-dd"));
   ```